178205560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1061}}^1$

素因数の和:1121

約数の個数: 128

約数和(自身を含む): 481723200

約数和(自身を除く): 303517640

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 323, 340, 380, 442, 494, 520, 646, 680, 760, 884, 988, 1061, 1105, 1235, 1292, 1615, 1768, 1976, 2122, 2210, 2470, 2584, 3230, 4199, 4244, 4420, 4940, 5305, 6460, 8398, 8488, 8840, 9880, 10610, 12920, 13793, 16796, 18037, 20159, 20995, 21220, 27586, 33592, 36074, 40318, 41990, 42440, 55172, 68965, 72148, 80636, 83980, 90185, 100795, 110344, 137930, 144296, 161272, 167960, 180370, 201590, 234481, 262067, 275860, 342703, 360740, 403180, 468962, 524134, 551720, 685406, 721480, 806360, 937924, 1048268, 1172405, 1310335, 1370812, 1713515, 1875848, 2096536, 2344810, 2620670, 2741624, 3427030, 4455139, 4689620, 5241340, 6854060, 8910278, 9379240, 10482680, 13708120, 17820556, 22275695, 35641112, 44551390, 89102780, 178205560]

約数ペア:

[(1, 178205560), (2, 89102780), (4, 44551390), (5, 35641112), (8, 22275695), (10, 17820556), (13, 13708120), (17, 10482680), (19, 9379240), (20, 8910278), (26, 6854060), (34, 5241340), (38, 4689620), (40, 4455139), (52, 3427030), (65, 2741624), (68, 2620670), (76, 2344810), (85, 2096536), (95, 1875848), (104, 1713515), (130, 1370812), (136, 1310335), (152, 1172405), (170, 1048268), (190, 937924), (221, 806360), (247, 721480), (260, 685406), (323, 551720), (340, 524134), (380, 468962), (442, 403180), (494, 360740), (520, 342703), (646, 275860), (680, 262067), (760, 234481), (884, 201590), (988, 180370), (1061, 167960), (1105, 161272), (1235, 144296), (1292, 137930), (1615, 110344), (1768, 100795), (1976, 90185), (2122, 83980), (2210, 80636), (2470, 72148), (2584, 68965), (3230, 55172), (4199, 42440), (4244, 41990), (4420, 40318), (4940, 36074), (5305, 33592), (6460, 27586), (8398, 21220), (8488, 20995), (8840, 20159), (9880, 18037), (10610, 16796), (12920, 13793)]