28140720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3169}}^1$

素因数の和:3222

約数の個数: 80

約数和(自身を含む): 89622240

約数和(自身を除く): 61481520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2960, 3169, 4440, 6338, 8880, 9507, 12676, 15845, 19014, 25352, 31690, 38028, 47535, 50704, 63380, 76056, 95070, 117253, 126760, 152112, 190140, 234506, 253520, 351759, 380280, 469012, 586265, 703518, 760560, 938024, 1172530, 1407036, 1758795, 1876048, 2345060, 2814072, 3517590, 4690120, 5628144, 7035180, 9380240, 14070360, 28140720]

約数ペア:

[(1, 28140720), (2, 14070360), (3, 9380240), (4, 7035180), (5, 5628144), (6, 4690120), (8, 3517590), (10, 2814072), (12, 2345060), (15, 1876048), (16, 1758795), (20, 1407036), (24, 1172530), (30, 938024), (37, 760560), (40, 703518), (48, 586265), (60, 469012), (74, 380280), (80, 351759), (111, 253520), (120, 234506), (148, 190140), (185, 152112), (222, 126760), (240, 117253), (296, 95070), (370, 76056), (444, 63380), (555, 50704), (592, 47535), (740, 38028), (888, 31690), (1110, 25352), (1480, 19014), (1776, 15845), (2220, 12676), (2960, 9507), (3169, 8880), (4440, 6338)]