20861040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5113}}^1$

素因数の和:5146

約数の個数: 80

約数和(自身を含む): 68486688

約数和(自身を除く): 47625648

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 5113, 10226, 15339, 20452, 25565, 30678, 40904, 51130, 61356, 76695, 81808, 86921, 102260, 122712, 153390, 173842, 204520, 245424, 260763, 306780, 347684, 409040, 434605, 521526, 613560, 695368, 869210, 1043052, 1227120, 1303815, 1390736, 1738420, 2086104, 2607630, 3476840, 4172208, 5215260, 6953680, 10430520, 20861040]

約数ペア:

[(1, 20861040), (2, 10430520), (3, 6953680), (4, 5215260), (5, 4172208), (6, 3476840), (8, 2607630), (10, 2086104), (12, 1738420), (15, 1390736), (16, 1303815), (17, 1227120), (20, 1043052), (24, 869210), (30, 695368), (34, 613560), (40, 521526), (48, 434605), (51, 409040), (60, 347684), (68, 306780), (80, 260763), (85, 245424), (102, 204520), (120, 173842), (136, 153390), (170, 122712), (204, 102260), (240, 86921), (255, 81808), (272, 76695), (340, 61356), (408, 51130), (510, 40904), (680, 30678), (816, 25565), (1020, 20452), (1360, 15339), (2040, 10226), (4080, 5113)]