81420570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:441

約数の個数: 192

約数和(自身を含む): 273162240

約数和(自身を除く): 191741670

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 31, 33, 35, 42, 45, 55, 62, 63, 66, 70, 77, 90, 93, 99, 105, 110, 126, 154, 155, 165, 186, 198, 210, 217, 231, 279, 310, 315, 330, 341, 379, 385, 434, 462, 465, 495, 558, 630, 651, 682, 693, 758, 770, 930, 990, 1023, 1085, 1137, 1155, 1302, 1386, 1395, 1705, 1895, 1953, 2046, 2170, 2274, 2310, 2387, 2653, 2790, 3069, 3255, 3410, 3411, 3465, 3790, 3906, 4169, 4774, 5115, 5306, 5685, 6138, 6510, 6822, 6930, 7161, 7959, 8338, 9765, 10230, 11370, 11749, 11935, 12507, 13265, 14322, 15345, 15918, 17055, 19530, 20845, 21483, 23498, 23870, 23877, 25014, 26530, 29183, 30690, 34110, 35247, 35805, 37521, 39795, 41690, 42966, 47754, 58366, 58745, 62535, 70494, 71610, 75042, 79590, 82243, 87549, 105741, 107415, 117490, 119385, 125070, 129239, 145915, 164486, 175098, 176235, 187605, 211482, 214830, 238770, 246729, 258478, 262647, 291830, 352470, 375210, 387717, 411215, 437745, 493458, 525294, 528705, 646195, 740187, 775434, 822430, 875490, 904673, 1057410, 1163151, 1233645, 1292390, 1313235, 1480374, 1809346, 1938585, 2326302, 2467290, 2626470, 2714019, 3700935, 3877170, 4523365, 5428038, 5815755, 7401870, 8142057, 9046730, 11631510, 13570095, 16284114, 27140190, 40710285, 81420570]

約数ペア:

[(1, 81420570), (2, 40710285), (3, 27140190), (5, 16284114), (6, 13570095), (7, 11631510), (9, 9046730), (10, 8142057), (11, 7401870), (14, 5815755), (15, 5428038), (18, 4523365), (21, 3877170), (22, 3700935), (30, 2714019), (31, 2626470), (33, 2467290), (35, 2326302), (42, 1938585), (45, 1809346), (55, 1480374), (62, 1313235), (63, 1292390), (66, 1233645), (70, 1163151), (77, 1057410), (90, 904673), (93, 875490), (99, 822430), (105, 775434), (110, 740187), (126, 646195), (154, 528705), (155, 525294), (165, 493458), (186, 437745), (198, 411215), (210, 387717), (217, 375210), (231, 352470), (279, 291830), (310, 262647), (315, 258478), (330, 246729), (341, 238770), (379, 214830), (385, 211482), (434, 187605), (462, 176235), (465, 175098), (495, 164486), (558, 145915), (630, 129239), (651, 125070), (682, 119385), (693, 117490), (758, 107415), (770, 105741), (930, 87549), (990, 82243), (1023, 79590), (1085, 75042), (1137, 71610), (1155, 70494), (1302, 62535), (1386, 58745), (1395, 58366), (1705, 47754), (1895, 42966), (1953, 41690), (2046, 39795), (2170, 37521), (2274, 35805), (2310, 35247), (2387, 34110), (2653, 30690), (2790, 29183), (3069, 26530), (3255, 25014), (3410, 23877), (3411, 23870), (3465, 23498), (3790, 21483), (3906, 20845), (4169, 19530), (4774, 17055), (5115, 15918), (5306, 15345), (5685, 14322), (6138, 13265), (6510, 12507), (6822, 11935), (6930, 11749), (7161, 11370), (7959, 10230), (8338, 9765)]