64710020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 149990400

約数和(自身を除く): 85280380

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 59, 61, 62, 116, 118, 122, 124, 145, 155, 236, 244, 290, 295, 305, 310, 580, 590, 610, 620, 899, 1180, 1220, 1711, 1769, 1798, 1829, 1891, 3422, 3538, 3596, 3599, 3658, 3782, 4495, 6844, 7076, 7198, 7316, 7564, 8555, 8845, 8990, 9145, 9455, 14396, 17110, 17690, 17980, 17995, 18290, 18910, 34220, 35380, 35990, 36580, 37820, 53041, 54839, 71980, 104371, 106082, 109678, 111569, 208742, 212164, 219356, 223138, 265205, 274195, 417484, 446276, 521855, 530410, 548390, 557845, 1043710, 1060820, 1096780, 1115690, 2087420, 2231380, 3235501, 6471002, 12942004, 16177505, 32355010, 64710020]

約数ペア:

[(1, 64710020), (2, 32355010), (4, 16177505), (5, 12942004), (10, 6471002), (20, 3235501), (29, 2231380), (31, 2087420), (58, 1115690), (59, 1096780), (61, 1060820), (62, 1043710), (116, 557845), (118, 548390), (122, 530410), (124, 521855), (145, 446276), (155, 417484), (236, 274195), (244, 265205), (290, 223138), (295, 219356), (305, 212164), (310, 208742), (580, 111569), (590, 109678), (610, 106082), (620, 104371), (899, 71980), (1180, 54839), (1220, 53041), (1711, 37820), (1769, 36580), (1798, 35990), (1829, 35380), (1891, 34220), (3422, 18910), (3538, 18290), (3596, 17995), (3599, 17980), (3658, 17690), (3782, 17110), (4495, 14396), (6844, 9455), (7076, 9145), (7198, 8990), (7316, 8845), (7564, 8555)]