201716720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:834

約数の個数: 80

約数和(自身を含む): 486531360

約数和(自身を除く): 284814640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 89, 164, 178, 205, 328, 356, 410, 445, 656, 691, 712, 820, 890, 1382, 1424, 1640, 1780, 2764, 3280, 3455, 3560, 3649, 5528, 6910, 7120, 7298, 11056, 13820, 14596, 18245, 27640, 28331, 29192, 36490, 55280, 56662, 58384, 61499, 72980, 113324, 122998, 141655, 145960, 226648, 245996, 283310, 291920, 307495, 453296, 491992, 566620, 614990, 983984, 1133240, 1229980, 2266480, 2459960, 2521459, 4919920, 5042918, 10085836, 12607295, 20171672, 25214590, 40343344, 50429180, 100858360, 201716720]

約数ペア:

[(1, 201716720), (2, 100858360), (4, 50429180), (5, 40343344), (8, 25214590), (10, 20171672), (16, 12607295), (20, 10085836), (40, 5042918), (41, 4919920), (80, 2521459), (82, 2459960), (89, 2266480), (164, 1229980), (178, 1133240), (205, 983984), (328, 614990), (356, 566620), (410, 491992), (445, 453296), (656, 307495), (691, 291920), (712, 283310), (820, 245996), (890, 226648), (1382, 145960), (1424, 141655), (1640, 122998), (1780, 113324), (2764, 72980), (3280, 61499), (3455, 58384), (3560, 56662), (3649, 55280), (5528, 36490), (6910, 29192), (7120, 28331), (7298, 27640), (11056, 18245), (13820, 14596)]