31808480

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 86873472

約数和(自身を除く): 55064992

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 53, 55, 62, 80, 88, 106, 110, 121, 124, 155, 160, 176, 212, 220, 242, 248, 265, 310, 341, 352, 424, 440, 484, 496, 530, 583, 605, 620, 682, 848, 880, 968, 992, 1060, 1166, 1210, 1240, 1364, 1643, 1696, 1705, 1760, 1936, 2120, 2332, 2420, 2480, 2728, 2915, 3286, 3410, 3751, 3872, 4240, 4664, 4840, 4960, 5456, 5830, 6413, 6572, 6820, 7502, 8215, 8480, 9328, 9680, 10912, 11660, 12826, 13144, 13640, 15004, 16430, 18073, 18656, 18755, 19360, 23320, 25652, 26288, 27280, 30008, 32065, 32860, 36146, 37510, 46640, 51304, 52576, 54560, 60016, 64130, 65720, 72292, 75020, 90365, 93280, 102608, 120032, 128260, 131440, 144584, 150040, 180730, 198803, 205216, 256520, 262880, 289168, 300080, 361460, 397606, 513040, 578336, 600160, 722920, 795212, 994015, 1026080, 1445840, 1590424, 1988030, 2891680, 3180848, 3976060, 6361696, 7952120, 15904240, 31808480]

約数ペア:

[(1, 31808480), (2, 15904240), (4, 7952120), (5, 6361696), (8, 3976060), (10, 3180848), (11, 2891680), (16, 1988030), (20, 1590424), (22, 1445840), (31, 1026080), (32, 994015), (40, 795212), (44, 722920), (53, 600160), (55, 578336), (62, 513040), (80, 397606), (88, 361460), (106, 300080), (110, 289168), (121, 262880), (124, 256520), (155, 205216), (160, 198803), (176, 180730), (212, 150040), (220, 144584), (242, 131440), (248, 128260), (265, 120032), (310, 102608), (341, 93280), (352, 90365), (424, 75020), (440, 72292), (484, 65720), (496, 64130), (530, 60016), (583, 54560), (605, 52576), (620, 51304), (682, 46640), (848, 37510), (880, 36146), (968, 32860), (992, 32065), (1060, 30008), (1166, 27280), (1210, 26288), (1240, 25652), (1364, 23320), (1643, 19360), (1696, 18755), (1705, 18656), (1760, 18073), (1936, 16430), (2120, 15004), (2332, 13640), (2420, 13144), (2480, 12826), (2728, 11660), (2915, 10912), (3286, 9680), (3410, 9328), (3751, 8480), (3872, 8215), (4240, 7502), (4664, 6820), (4840, 6572), (4960, 6413), (5456, 5830)]