278803980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17021}}^1$

素因数の和:17056

約数の個数: 144

約数和(自身を含む): 1040929344

約数和(自身を除く): 762125364

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 5460, 8190, 16380, 17021, 34042, 51063, 68084, 85105, 102126, 119147, 153189, 170210, 204252, 221273, 238294, 255315, 306378, 340420, 357441, 442546, 476588, 510630, 595735, 612756, 663819, 714882, 765945, 885092, 1021260, 1072323, 1106365, 1191470, 1327638, 1429764, 1531890, 1548911, 1787205, 1991457, 2144646, 2212730, 2382940, 2655276, 3063780, 3097822, 3319095, 3574410, 3982914, 4289292, 4425460, 4646733, 5361615, 6195644, 6638190, 7148820, 7744555, 7965828, 9293466, 9957285, 10723230, 13276380, 13940199, 15489110, 18586932, 19914570, 21446460, 23233665, 27880398, 30978220, 39829140, 46467330, 55760796, 69700995, 92934660, 139401990, 278803980]

約数ペア:

[(1, 278803980), (2, 139401990), (3, 92934660), (4, 69700995), (5, 55760796), (6, 46467330), (7, 39829140), (9, 30978220), (10, 27880398), (12, 23233665), (13, 21446460), (14, 19914570), (15, 18586932), (18, 15489110), (20, 13940199), (21, 13276380), (26, 10723230), (28, 9957285), (30, 9293466), (35, 7965828), (36, 7744555), (39, 7148820), (42, 6638190), (45, 6195644), (52, 5361615), (60, 4646733), (63, 4425460), (65, 4289292), (70, 3982914), (78, 3574410), (84, 3319095), (90, 3097822), (91, 3063780), (105, 2655276), (117, 2382940), (126, 2212730), (130, 2144646), (140, 1991457), (156, 1787205), (180, 1548911), (182, 1531890), (195, 1429764), (210, 1327638), (234, 1191470), (252, 1106365), (260, 1072323), (273, 1021260), (315, 885092), (364, 765945), (390, 714882), (420, 663819), (455, 612756), (468, 595735), (546, 510630), (585, 476588), (630, 442546), (780, 357441), (819, 340420), (910, 306378), (1092, 255315), (1170, 238294), (1260, 221273), (1365, 204252), (1638, 170210), (1820, 153189), (2340, 119147), (2730, 102126), (3276, 85105), (4095, 68084), (5460, 51063), (8190, 34042), (16380, 17021)]