280216300

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:177

約数の個数: 216

約数和(自身を含む): 785480976

約数和(自身を除く): 505264676

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 49, 50, 52, 53, 65, 70, 83, 91, 98, 100, 106, 130, 140, 166, 175, 182, 196, 212, 245, 260, 265, 325, 332, 350, 364, 371, 415, 455, 490, 530, 581, 637, 650, 689, 700, 742, 830, 910, 980, 1060, 1079, 1162, 1225, 1274, 1300, 1325, 1378, 1484, 1660, 1820, 1855, 2075, 2158, 2275, 2324, 2450, 2548, 2597, 2650, 2756, 2905, 3185, 3445, 3710, 4067, 4150, 4316, 4399, 4550, 4823, 4900, 5194, 5300, 5395, 5810, 6370, 6890, 7420, 7553, 8134, 8300, 8798, 9100, 9275, 9646, 10388, 10790, 11620, 12740, 12985, 13780, 14525, 15106, 15925, 16268, 17225, 17596, 18550, 19292, 20335, 21580, 21995, 24115, 25970, 26975, 29050, 30212, 30793, 31850, 33761, 34450, 37100, 37765, 40670, 43990, 48230, 51940, 52871, 53950, 57187, 58100, 61586, 63700, 64925, 67522, 68900, 75530, 81340, 87980, 96460, 101675, 105742, 107900, 109975, 114374, 120575, 123172, 129850, 135044, 151060, 153965, 168805, 188825, 203350, 211484, 215551, 219950, 228748, 241150, 259700, 264355, 285935, 307930, 337610, 377650, 400309, 406700, 431102, 439900, 482300, 528710, 571870, 615860, 675220, 755300, 769825, 800618, 844025, 862204, 1057420, 1077755, 1143740, 1321775, 1429675, 1539650, 1601236, 1688050, 2001545, 2155510, 2643550, 2802163, 2859350, 3079300, 3376100, 4003090, 4311020, 5287100, 5388775, 5604326, 5718700, 8006180, 10007725, 10777550, 11208652, 14010815, 20015450, 21555100, 28021630, 40030900, 56043260, 70054075, 140108150, 280216300]

約数ペア:

[(1, 280216300), (2, 140108150), (4, 70054075), (5, 56043260), (7, 40030900), (10, 28021630), (13, 21555100), (14, 20015450), (20, 14010815), (25, 11208652), (26, 10777550), (28, 10007725), (35, 8006180), (49, 5718700), (50, 5604326), (52, 5388775), (53, 5287100), (65, 4311020), (70, 4003090), (83, 3376100), (91, 3079300), (98, 2859350), (100, 2802163), (106, 2643550), (130, 2155510), (140, 2001545), (166, 1688050), (175, 1601236), (182, 1539650), (196, 1429675), (212, 1321775), (245, 1143740), (260, 1077755), (265, 1057420), (325, 862204), (332, 844025), (350, 800618), (364, 769825), (371, 755300), (415, 675220), (455, 615860), (490, 571870), (530, 528710), (581, 482300), (637, 439900), (650, 431102), (689, 406700), (700, 400309), (742, 377650), (830, 337610), (910, 307930), (980, 285935), (1060, 264355), (1079, 259700), (1162, 241150), (1225, 228748), (1274, 219950), (1300, 215551), (1325, 211484), (1378, 203350), (1484, 188825), (1660, 168805), (1820, 153965), (1855, 151060), (2075, 135044), (2158, 129850), (2275, 123172), (2324, 120575), (2450, 114374), (2548, 109975), (2597, 107900), (2650, 105742), (2756, 101675), (2905, 96460), (3185, 87980), (3445, 81340), (3710, 75530), (4067, 68900), (4150, 67522), (4316, 64925), (4399, 63700), (4550, 61586), (4823, 58100), (4900, 57187), (5194, 53950), (5300, 52871), (5395, 51940), (5810, 48230), (6370, 43990), (6890, 40670), (7420, 37765), (7553, 37100), (8134, 34450), (8300, 33761), (8798, 31850), (9100, 30793), (9275, 30212), (9646, 29050), (10388, 26975), (10790, 25970), (11620, 24115), (12740, 21995), (12985, 21580), (13780, 20335), (14525, 19292), (15106, 18550), (15925, 17596), (16268, 17225)]