81190980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:215

約数の個数: 216

約数和(自身を含む): 284166792

約数和(自身を除く): 202975812

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, 157, 169, 170, 180, 195, 204, 221, 234, 255, 260, 306, 314, 338, 340, 390, 442, 468, 471, 507, 510, 585, 612, 628, 663, 676, 765, 780, 785, 845, 884, 942, 1014, 1020, 1105, 1170, 1326, 1413, 1521, 1530, 1570, 1690, 1884, 1989, 2028, 2041, 2210, 2340, 2355, 2535, 2652, 2669, 2826, 2873, 3042, 3060, 3140, 3315, 3380, 3978, 4082, 4420, 4710, 5070, 5338, 5652, 5746, 6084, 6123, 6630, 7065, 7605, 7956, 8007, 8164, 8619, 9420, 9945, 10140, 10205, 10676, 11492, 12246, 13260, 13345, 14130, 14365, 15210, 16014, 17238, 18369, 19890, 20410, 24021, 24492, 25857, 26533, 26690, 28260, 28730, 30420, 30615, 32028, 34476, 34697, 36738, 39780, 40035, 40820, 43095, 48042, 51714, 53066, 53380, 57460, 61230, 69394, 73476, 79599, 80070, 86190, 91845, 96084, 103428, 104091, 106132, 120105, 122460, 129285, 132665, 138788, 159198, 160140, 172380, 173485, 183690, 208182, 238797, 240210, 258570, 265330, 312273, 318396, 346970, 367380, 397995, 416364, 451061, 477594, 480420, 517140, 520455, 530660, 624546, 693940, 795990, 902122, 955188, 1040910, 1193985, 1249092, 1353183, 1561365, 1591980, 1804244, 2081820, 2255305, 2387970, 2706366, 3122730, 4059549, 4510610, 4775940, 5412732, 6245460, 6765915, 8119098, 9021220, 13531830, 16238196, 20297745, 27063660, 40595490, 81190980]

約数ペア:

[(1, 81190980), (2, 40595490), (3, 27063660), (4, 20297745), (5, 16238196), (6, 13531830), (9, 9021220), (10, 8119098), (12, 6765915), (13, 6245460), (15, 5412732), (17, 4775940), (18, 4510610), (20, 4059549), (26, 3122730), (30, 2706366), (34, 2387970), (36, 2255305), (39, 2081820), (45, 1804244), (51, 1591980), (52, 1561365), (60, 1353183), (65, 1249092), (68, 1193985), (78, 1040910), (85, 955188), (90, 902122), (102, 795990), (117, 693940), (130, 624546), (153, 530660), (156, 520455), (157, 517140), (169, 480420), (170, 477594), (180, 451061), (195, 416364), (204, 397995), (221, 367380), (234, 346970), (255, 318396), (260, 312273), (306, 265330), (314, 258570), (338, 240210), (340, 238797), (390, 208182), (442, 183690), (468, 173485), (471, 172380), (507, 160140), (510, 159198), (585, 138788), (612, 132665), (628, 129285), (663, 122460), (676, 120105), (765, 106132), (780, 104091), (785, 103428), (845, 96084), (884, 91845), (942, 86190), (1014, 80070), (1020, 79599), (1105, 73476), (1170, 69394), (1326, 61230), (1413, 57460), (1521, 53380), (1530, 53066), (1570, 51714), (1690, 48042), (1884, 43095), (1989, 40820), (2028, 40035), (2041, 39780), (2210, 36738), (2340, 34697), (2355, 34476), (2535, 32028), (2652, 30615), (2669, 30420), (2826, 28730), (2873, 28260), (3042, 26690), (3060, 26533), (3140, 25857), (3315, 24492), (3380, 24021), (3978, 20410), (4082, 19890), (4420, 18369), (4710, 17238), (5070, 16014), (5338, 15210), (5652, 14365), (5746, 14130), (6084, 13345), (6123, 13260), (6630, 12246), (7065, 11492), (7605, 10676), (7956, 10205), (8007, 10140), (8164, 9945), (8619, 9420)]