25157580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 84268800

約数和(自身を除く): 59111220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 105, 129, 140, 147, 172, 196, 199, 210, 215, 245, 258, 294, 301, 398, 420, 430, 490, 516, 588, 597, 602, 645, 735, 796, 860, 903, 980, 995, 1194, 1204, 1290, 1393, 1470, 1505, 1806, 1990, 2107, 2388, 2580, 2786, 2940, 2985, 3010, 3612, 3980, 4179, 4214, 4515, 5572, 5970, 6020, 6321, 6965, 8358, 8428, 8557, 9030, 9751, 10535, 11940, 12642, 13930, 16716, 17114, 18060, 19502, 20895, 21070, 25284, 25671, 27860, 29253, 31605, 34228, 39004, 41790, 42140, 42785, 48755, 51342, 58506, 59899, 63210, 83580, 85570, 97510, 102684, 117012, 119798, 126420, 128355, 146265, 171140, 179697, 195020, 239596, 256710, 292530, 299495, 359394, 419293, 513420, 585060, 598990, 718788, 838586, 898485, 1197980, 1257879, 1677172, 1796970, 2096465, 2515758, 3593940, 4192930, 5031516, 6289395, 8385860, 12578790, 25157580]

約数ペア:

[(1, 25157580), (2, 12578790), (3, 8385860), (4, 6289395), (5, 5031516), (6, 4192930), (7, 3593940), (10, 2515758), (12, 2096465), (14, 1796970), (15, 1677172), (20, 1257879), (21, 1197980), (28, 898485), (30, 838586), (35, 718788), (42, 598990), (43, 585060), (49, 513420), (60, 419293), (70, 359394), (84, 299495), (86, 292530), (98, 256710), (105, 239596), (129, 195020), (140, 179697), (147, 171140), (172, 146265), (196, 128355), (199, 126420), (210, 119798), (215, 117012), (245, 102684), (258, 97510), (294, 85570), (301, 83580), (398, 63210), (420, 59899), (430, 58506), (490, 51342), (516, 48755), (588, 42785), (597, 42140), (602, 41790), (645, 39004), (735, 34228), (796, 31605), (860, 29253), (903, 27860), (980, 25671), (995, 25284), (1194, 21070), (1204, 20895), (1290, 19502), (1393, 18060), (1470, 17114), (1505, 16716), (1806, 13930), (1990, 12642), (2107, 11940), (2388, 10535), (2580, 9751), (2786, 9030), (2940, 8557), (2985, 8428), (3010, 8358), (3612, 6965), (3980, 6321), (4179, 6020), (4214, 5970), (4515, 5572)]