28706790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{613}}^1$

素因数の和:853

約数の個数: 64

約数和(自身を含む): 79220736

約数和(自身を除く): 50513946

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 223, 446, 613, 669, 1115, 1226, 1338, 1561, 1839, 2230, 3065, 3122, 3345, 3678, 4291, 4683, 6130, 6690, 7805, 8582, 9195, 9366, 12873, 15610, 18390, 21455, 23415, 25746, 42910, 46830, 64365, 128730, 136699, 273398, 410097, 683495, 820194, 956893, 1366990, 1913786, 2050485, 2870679, 4100970, 4784465, 5741358, 9568930, 14353395, 28706790]

約数ペア:

[(1, 28706790), (2, 14353395), (3, 9568930), (5, 5741358), (6, 4784465), (7, 4100970), (10, 2870679), (14, 2050485), (15, 1913786), (21, 1366990), (30, 956893), (35, 820194), (42, 683495), (70, 410097), (105, 273398), (210, 136699), (223, 128730), (446, 64365), (613, 46830), (669, 42910), (1115, 25746), (1226, 23415), (1338, 21455), (1561, 18390), (1839, 15610), (2230, 12873), (3065, 9366), (3122, 9195), (3345, 8582), (3678, 7805), (4291, 6690), (4683, 6130)]