391474980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{757}}^1$

素因数の和:815

約数の個数: 216

約数和(自身を含む): 1363281192

約数和(自身を除く): 971806212

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 169, 170, 180, 195, 204, 221, 234, 255, 260, 306, 338, 340, 390, 442, 468, 507, 510, 585, 612, 663, 676, 757, 765, 780, 845, 884, 1014, 1020, 1105, 1170, 1326, 1514, 1521, 1530, 1690, 1989, 2028, 2210, 2271, 2340, 2535, 2652, 2873, 3028, 3042, 3060, 3315, 3380, 3785, 3978, 4420, 4542, 5070, 5746, 6084, 6630, 6813, 7570, 7605, 7956, 8619, 9084, 9841, 9945, 10140, 11355, 11492, 12869, 13260, 13626, 14365, 15140, 15210, 17238, 19682, 19890, 22710, 25738, 25857, 27252, 28730, 29523, 30420, 34065, 34476, 38607, 39364, 39780, 43095, 45420, 49205, 51476, 51714, 57460, 59046, 64345, 68130, 77214, 86190, 88569, 98410, 103428, 115821, 118092, 127933, 128690, 129285, 136260, 147615, 154428, 167297, 172380, 177138, 193035, 196820, 231642, 255866, 257380, 258570, 295230, 334594, 354276, 383799, 386070, 442845, 463284, 501891, 511732, 517140, 579105, 590460, 639665, 669188, 767598, 772140, 836485, 885690, 1003782, 1151397, 1158210, 1279330, 1505673, 1535196, 1672970, 1771380, 1918995, 2007564, 2174861, 2302794, 2316420, 2509455, 2558660, 3011346, 3345940, 3837990, 4349722, 4605588, 5018910, 5756985, 6022692, 6524583, 7528365, 7675980, 8699444, 10037820, 10874305, 11513970, 13049166, 15056730, 19573749, 21748610, 23027940, 26098332, 30113460, 32622915, 39147498, 43497220, 65245830, 78294996, 97868745, 130491660, 195737490, 391474980]

約数ペア:

[(1, 391474980), (2, 195737490), (3, 130491660), (4, 97868745), (5, 78294996), (6, 65245830), (9, 43497220), (10, 39147498), (12, 32622915), (13, 30113460), (15, 26098332), (17, 23027940), (18, 21748610), (20, 19573749), (26, 15056730), (30, 13049166), (34, 11513970), (36, 10874305), (39, 10037820), (45, 8699444), (51, 7675980), (52, 7528365), (60, 6524583), (65, 6022692), (68, 5756985), (78, 5018910), (85, 4605588), (90, 4349722), (102, 3837990), (117, 3345940), (130, 3011346), (153, 2558660), (156, 2509455), (169, 2316420), (170, 2302794), (180, 2174861), (195, 2007564), (204, 1918995), (221, 1771380), (234, 1672970), (255, 1535196), (260, 1505673), (306, 1279330), (338, 1158210), (340, 1151397), (390, 1003782), (442, 885690), (468, 836485), (507, 772140), (510, 767598), (585, 669188), (612, 639665), (663, 590460), (676, 579105), (757, 517140), (765, 511732), (780, 501891), (845, 463284), (884, 442845), (1014, 386070), (1020, 383799), (1105, 354276), (1170, 334594), (1326, 295230), (1514, 258570), (1521, 257380), (1530, 255866), (1690, 231642), (1989, 196820), (2028, 193035), (2210, 177138), (2271, 172380), (2340, 167297), (2535, 154428), (2652, 147615), (2873, 136260), (3028, 129285), (3042, 128690), (3060, 127933), (3315, 118092), (3380, 115821), (3785, 103428), (3978, 98410), (4420, 88569), (4542, 86190), (5070, 77214), (5746, 68130), (6084, 64345), (6630, 59046), (6813, 57460), (7570, 51714), (7605, 51476), (7956, 49205), (8619, 45420), (9084, 43095), (9841, 39780), (9945, 39364), (10140, 38607), (11355, 34476), (11492, 34065), (12869, 30420), (13260, 29523), (13626, 28730), (14365, 27252), (15140, 25857), (15210, 25738), (17238, 22710), (19682, 19890)]