20343956720

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1\times {\mathrm{15629}}^1$

素因数の和:16002

約数の個数: 80

約数和(自身を含む): 48352217760

約数和(自身を除く): 28008261040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 307, 424, 530, 614, 848, 1060, 1228, 1535, 2120, 2456, 3070, 4240, 4912, 6140, 12280, 15629, 16271, 24560, 31258, 32542, 62516, 65084, 78145, 81355, 125032, 130168, 156290, 162710, 250064, 260336, 312580, 325420, 625160, 650840, 828337, 1250320, 1301680, 1656674, 3313348, 4141685, 4798103, 6626696, 8283370, 9596206, 13253392, 16566740, 19192412, 23990515, 33133480, 38384824, 47981030, 66266960, 76769648, 95962060, 191924120, 254299459, 383848240, 508598918, 1017197836, 1271497295, 2034395672, 2542994590, 4068791344, 5085989180, 10171978360, 20343956720]

約数ペア:

[(1, 20343956720), (2, 10171978360), (4, 5085989180), (5, 4068791344), (8, 2542994590), (10, 2034395672), (16, 1271497295), (20, 1017197836), (40, 508598918), (53, 383848240), (80, 254299459), (106, 191924120), (212, 95962060), (265, 76769648), (307, 66266960), (424, 47981030), (530, 38384824), (614, 33133480), (848, 23990515), (1060, 19192412), (1228, 16566740), (1535, 13253392), (2120, 9596206), (2456, 8283370), (3070, 6626696), (4240, 4798103), (4912, 4141685), (6140, 3313348), (12280, 1656674), (15629, 1301680), (16271, 1250320), (24560, 828337), (31258, 650840), (32542, 625160), (62516, 325420), (65084, 312580), (78145, 260336), (81355, 250064), (125032, 162710), (130168, 156290)]