19901070

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1019}}^1$

素因数の和:1070

約数の個数: 96

約数和(自身を含む): 61102080

約数和(自身を除く): 41201010

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 31, 35, 42, 45, 62, 63, 70, 90, 93, 105, 126, 155, 186, 210, 217, 279, 310, 315, 434, 465, 558, 630, 651, 930, 1019, 1085, 1302, 1395, 1953, 2038, 2170, 2790, 3057, 3255, 3906, 5095, 6114, 6510, 7133, 9171, 9765, 10190, 14266, 15285, 18342, 19530, 21399, 30570, 31589, 35665, 42798, 45855, 63178, 64197, 71330, 91710, 94767, 106995, 128394, 157945, 189534, 213990, 221123, 284301, 315890, 320985, 442246, 473835, 568602, 641970, 663369, 947670, 1105615, 1326738, 1421505, 1990107, 2211230, 2843010, 3316845, 3980214, 6633690, 9950535, 19901070]

約数ペア:

[(1, 19901070), (2, 9950535), (3, 6633690), (5, 3980214), (6, 3316845), (7, 2843010), (9, 2211230), (10, 1990107), (14, 1421505), (15, 1326738), (18, 1105615), (21, 947670), (30, 663369), (31, 641970), (35, 568602), (42, 473835), (45, 442246), (62, 320985), (63, 315890), (70, 284301), (90, 221123), (93, 213990), (105, 189534), (126, 157945), (155, 128394), (186, 106995), (210, 94767), (217, 91710), (279, 71330), (310, 64197), (315, 63178), (434, 45855), (465, 42798), (558, 35665), (630, 31589), (651, 30570), (930, 21399), (1019, 19530), (1085, 18342), (1302, 15285), (1395, 14266), (1953, 10190), (2038, 9765), (2170, 9171), (2790, 7133), (3057, 6510), (3255, 6114), (3906, 5095)]