2215980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{947}}^1$

素因数の和:975

約数の個数: 72

約数和(自身を含む): 7246512

約数和(自身を除く): 5030532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 947, 1170, 1894, 2340, 2841, 3788, 4735, 5682, 8523, 9470, 11364, 12311, 14205, 17046, 18940, 24622, 28410, 34092, 36933, 42615, 49244, 56820, 61555, 73866, 85230, 110799, 123110, 147732, 170460, 184665, 221598, 246220, 369330, 443196, 553995, 738660, 1107990, 2215980]

約数ペア:

[(1, 2215980), (2, 1107990), (3, 738660), (4, 553995), (5, 443196), (6, 369330), (9, 246220), (10, 221598), (12, 184665), (13, 170460), (15, 147732), (18, 123110), (20, 110799), (26, 85230), (30, 73866), (36, 61555), (39, 56820), (45, 49244), (52, 42615), (60, 36933), (65, 34092), (78, 28410), (90, 24622), (117, 18940), (130, 17046), (156, 14205), (180, 12311), (195, 11364), (234, 9470), (260, 8523), (390, 5682), (468, 4735), (585, 3788), (780, 2841), (947, 2340), (1170, 1894)]