254471560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1543}}^1$

素因数の和:1611

約数の個数: 128

約数和(自身を含む): 711475200

約数和(自身を除く): 457003640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 31, 35, 38, 40, 56, 62, 70, 76, 95, 124, 133, 140, 152, 155, 190, 217, 248, 266, 280, 310, 380, 434, 532, 589, 620, 665, 760, 868, 1064, 1085, 1178, 1240, 1330, 1543, 1736, 2170, 2356, 2660, 2945, 3086, 4123, 4340, 4712, 5320, 5890, 6172, 7715, 8246, 8680, 10801, 11780, 12344, 15430, 16492, 20615, 21602, 23560, 29317, 30860, 32984, 41230, 43204, 47833, 54005, 58634, 61720, 82460, 86408, 95666, 108010, 117268, 146585, 164920, 191332, 205219, 216020, 234536, 239165, 293170, 334831, 382664, 410438, 432040, 478330, 586340, 669662, 820876, 908827, 956660, 1026095, 1172680, 1339324, 1641752, 1674155, 1817654, 1913320, 2052190, 2678648, 3348310, 3635308, 4104380, 4544135, 6361789, 6696620, 7270616, 8208760, 9088270, 12723578, 13393240, 18176540, 25447156, 31808945, 36353080, 50894312, 63617890, 127235780, 254471560]

約数ペア:

[(1, 254471560), (2, 127235780), (4, 63617890), (5, 50894312), (7, 36353080), (8, 31808945), (10, 25447156), (14, 18176540), (19, 13393240), (20, 12723578), (28, 9088270), (31, 8208760), (35, 7270616), (38, 6696620), (40, 6361789), (56, 4544135), (62, 4104380), (70, 3635308), (76, 3348310), (95, 2678648), (124, 2052190), (133, 1913320), (140, 1817654), (152, 1674155), (155, 1641752), (190, 1339324), (217, 1172680), (248, 1026095), (266, 956660), (280, 908827), (310, 820876), (380, 669662), (434, 586340), (532, 478330), (589, 432040), (620, 410438), (665, 382664), (760, 334831), (868, 293170), (1064, 239165), (1085, 234536), (1178, 216020), (1240, 205219), (1330, 191332), (1543, 164920), (1736, 146585), (2170, 117268), (2356, 108010), (2660, 95666), (2945, 86408), (3086, 82460), (4123, 61720), (4340, 58634), (4712, 54005), (5320, 47833), (5890, 43204), (6172, 41230), (7715, 32984), (8246, 30860), (8680, 29317), (10801, 23560), (11780, 21602), (12344, 20615), (15430, 16492)]