20213306480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{877}}^1\times {\mathrm{4723}}^1$

素因数の和:5674

約数の個数: 80

約数和(自身を含む): 47830953504

約数和(自身を除く): 27617647024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 877, 976, 1220, 1754, 2440, 3508, 4385, 4723, 4880, 7016, 8770, 9446, 14032, 17540, 18892, 23615, 35080, 37784, 47230, 53497, 70160, 75568, 94460, 106994, 188920, 213988, 267485, 288103, 377840, 427976, 534970, 576206, 855952, 1069940, 1152412, 1440515, 2139880, 2304824, 2881030, 4142071, 4279760, 4609648, 5762060, 8284142, 11524120, 16568284, 20710355, 23048240, 33136568, 41420710, 66273136, 82841420, 165682840, 252666331, 331365680, 505332662, 1010665324, 1263331655, 2021330648, 2526663310, 4042661296, 5053326620, 10106653240, 20213306480]

約数ペア:

[(1, 20213306480), (2, 10106653240), (4, 5053326620), (5, 4042661296), (8, 2526663310), (10, 2021330648), (16, 1263331655), (20, 1010665324), (40, 505332662), (61, 331365680), (80, 252666331), (122, 165682840), (244, 82841420), (305, 66273136), (488, 41420710), (610, 33136568), (877, 23048240), (976, 20710355), (1220, 16568284), (1754, 11524120), (2440, 8284142), (3508, 5762060), (4385, 4609648), (4723, 4279760), (4880, 4142071), (7016, 2881030), (8770, 2304824), (9446, 2139880), (14032, 1440515), (17540, 1152412), (18892, 1069940), (23615, 855952), (35080, 576206), (37784, 534970), (47230, 427976), (53497, 377840), (70160, 288103), (75568, 267485), (94460, 213988), (106994, 188920)]