251496420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{653}}^1$

素因数の和:810

約数の個数: 144

約数和(自身を含む): 826676928

約数和(自身を除く): 575180508

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 131, 140, 147, 196, 210, 245, 262, 294, 393, 420, 490, 524, 588, 653, 655, 735, 786, 917, 980, 1306, 1310, 1470, 1572, 1834, 1959, 1965, 2612, 2620, 2751, 2940, 3265, 3668, 3918, 3930, 4571, 4585, 5502, 6419, 6530, 7836, 7860, 9142, 9170, 9795, 11004, 12838, 13060, 13713, 13755, 18284, 18340, 19257, 19590, 22855, 25676, 27426, 27510, 31997, 32095, 38514, 39180, 45710, 54852, 55020, 63994, 64190, 68565, 77028, 85543, 91420, 95991, 96285, 127988, 128380, 137130, 159985, 171086, 191982, 192570, 256629, 274260, 319970, 342172, 383964, 385140, 427715, 479955, 513258, 598801, 639940, 855430, 959910, 1026516, 1197602, 1283145, 1710860, 1796403, 1919820, 2395204, 2566290, 2994005, 3592806, 4191607, 5132580, 5988010, 7185612, 8383214, 8982015, 11976020, 12574821, 16766428, 17964030, 20958035, 25149642, 35928060, 41916070, 50299284, 62874105, 83832140, 125748210, 251496420]

約数ペア:

[(1, 251496420), (2, 125748210), (3, 83832140), (4, 62874105), (5, 50299284), (6, 41916070), (7, 35928060), (10, 25149642), (12, 20958035), (14, 17964030), (15, 16766428), (20, 12574821), (21, 11976020), (28, 8982015), (30, 8383214), (35, 7185612), (42, 5988010), (49, 5132580), (60, 4191607), (70, 3592806), (84, 2994005), (98, 2566290), (105, 2395204), (131, 1919820), (140, 1796403), (147, 1710860), (196, 1283145), (210, 1197602), (245, 1026516), (262, 959910), (294, 855430), (393, 639940), (420, 598801), (490, 513258), (524, 479955), (588, 427715), (653, 385140), (655, 383964), (735, 342172), (786, 319970), (917, 274260), (980, 256629), (1306, 192570), (1310, 191982), (1470, 171086), (1572, 159985), (1834, 137130), (1959, 128380), (1965, 127988), (2612, 96285), (2620, 95991), (2751, 91420), (2940, 85543), (3265, 77028), (3668, 68565), (3918, 64190), (3930, 63994), (4571, 55020), (4585, 54852), (5502, 45710), (6419, 39180), (6530, 38514), (7836, 32095), (7860, 31997), (9142, 27510), (9170, 27426), (9795, 25676), (11004, 22855), (12838, 19590), (13060, 19257), (13713, 18340), (13755, 18284)]