19886640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:147

約数の個数: 160

約数和(自身を含む): 65995776

約数和(自身を除く): 46109136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 43, 47, 48, 60, 80, 82, 86, 94, 120, 123, 129, 141, 164, 172, 188, 205, 215, 235, 240, 246, 258, 282, 328, 344, 376, 410, 430, 470, 492, 516, 564, 615, 645, 656, 688, 705, 752, 820, 860, 940, 984, 1032, 1128, 1230, 1290, 1410, 1640, 1720, 1763, 1880, 1927, 1968, 2021, 2064, 2256, 2460, 2580, 2820, 3280, 3440, 3526, 3760, 3854, 4042, 4920, 5160, 5289, 5640, 5781, 6063, 7052, 7708, 8084, 8815, 9635, 9840, 10105, 10320, 10578, 11280, 11562, 12126, 14104, 15416, 16168, 17630, 19270, 20210, 21156, 23124, 24252, 26445, 28208, 28905, 30315, 30832, 32336, 35260, 38540, 40420, 42312, 46248, 48504, 52890, 57810, 60630, 70520, 77080, 80840, 82861, 84624, 92496, 97008, 105780, 115620, 121260, 141040, 154160, 161680, 165722, 211560, 231240, 242520, 248583, 331444, 414305, 423120, 462480, 485040, 497166, 662888, 828610, 994332, 1242915, 1325776, 1657220, 1988664, 2485830, 3314440, 3977328, 4971660, 6628880, 9943320, 19886640]

約数ペア:

[(1, 19886640), (2, 9943320), (3, 6628880), (4, 4971660), (5, 3977328), (6, 3314440), (8, 2485830), (10, 1988664), (12, 1657220), (15, 1325776), (16, 1242915), (20, 994332), (24, 828610), (30, 662888), (40, 497166), (41, 485040), (43, 462480), (47, 423120), (48, 414305), (60, 331444), (80, 248583), (82, 242520), (86, 231240), (94, 211560), (120, 165722), (123, 161680), (129, 154160), (141, 141040), (164, 121260), (172, 115620), (188, 105780), (205, 97008), (215, 92496), (235, 84624), (240, 82861), (246, 80840), (258, 77080), (282, 70520), (328, 60630), (344, 57810), (376, 52890), (410, 48504), (430, 46248), (470, 42312), (492, 40420), (516, 38540), (564, 35260), (615, 32336), (645, 30832), (656, 30315), (688, 28905), (705, 28208), (752, 26445), (820, 24252), (860, 23124), (940, 21156), (984, 20210), (1032, 19270), (1128, 17630), (1230, 16168), (1290, 15416), (1410, 14104), (1640, 12126), (1720, 11562), (1763, 11280), (1880, 10578), (1927, 10320), (1968, 10105), (2021, 9840), (2064, 9635), (2256, 8815), (2460, 8084), (2580, 7708), (2820, 7052), (3280, 6063), (3440, 5781), (3526, 5640), (3760, 5289), (3854, 5160), (4042, 4920)]