31812720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:171

約数の個数: 160

約数和(自身を含む): 104618304

約数和(自身を除く): 72805584

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 53, 60, 61, 80, 82, 106, 120, 122, 123, 159, 164, 183, 205, 212, 240, 244, 246, 265, 305, 318, 328, 366, 410, 424, 488, 492, 530, 610, 615, 636, 656, 732, 795, 820, 848, 915, 976, 984, 1060, 1220, 1230, 1272, 1464, 1590, 1640, 1830, 1968, 2120, 2173, 2440, 2460, 2501, 2544, 2928, 3180, 3233, 3280, 3660, 4240, 4346, 4880, 4920, 5002, 6360, 6466, 6519, 7320, 7503, 8692, 9699, 9840, 10004, 10865, 12505, 12720, 12932, 13038, 14640, 15006, 16165, 17384, 19398, 20008, 21730, 25010, 25864, 26076, 30012, 32330, 32595, 34768, 37515, 38796, 40016, 43460, 48495, 50020, 51728, 52152, 60024, 64660, 65190, 75030, 77592, 86920, 96990, 100040, 104304, 120048, 129320, 130380, 132553, 150060, 155184, 173840, 193980, 200080, 258640, 260760, 265106, 300120, 387960, 397659, 521520, 530212, 600240, 662765, 775920, 795318, 1060424, 1325530, 1590636, 1988295, 2120848, 2651060, 3181272, 3976590, 5302120, 6362544, 7953180, 10604240, 15906360, 31812720]

約数ペア:

[(1, 31812720), (2, 15906360), (3, 10604240), (4, 7953180), (5, 6362544), (6, 5302120), (8, 3976590), (10, 3181272), (12, 2651060), (15, 2120848), (16, 1988295), (20, 1590636), (24, 1325530), (30, 1060424), (40, 795318), (41, 775920), (48, 662765), (53, 600240), (60, 530212), (61, 521520), (80, 397659), (82, 387960), (106, 300120), (120, 265106), (122, 260760), (123, 258640), (159, 200080), (164, 193980), (183, 173840), (205, 155184), (212, 150060), (240, 132553), (244, 130380), (246, 129320), (265, 120048), (305, 104304), (318, 100040), (328, 96990), (366, 86920), (410, 77592), (424, 75030), (488, 65190), (492, 64660), (530, 60024), (610, 52152), (615, 51728), (636, 50020), (656, 48495), (732, 43460), (795, 40016), (820, 38796), (848, 37515), (915, 34768), (976, 32595), (984, 32330), (1060, 30012), (1220, 26076), (1230, 25864), (1272, 25010), (1464, 21730), (1590, 20008), (1640, 19398), (1830, 17384), (1968, 16165), (2120, 15006), (2173, 14640), (2440, 13038), (2460, 12932), (2501, 12720), (2544, 12505), (2928, 10865), (3180, 10004), (3233, 9840), (3280, 9699), (3660, 8692), (4240, 7503), (4346, 7320), (4880, 6519), (4920, 6466), (5002, 6360)]