21991150320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{883}}^1\times {\mathrm{2531}}^1$

素因数の和:3471

約数の個数: 160

約数和(自身を含む): 69942023424

約数和(自身を除く): 47950873104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 883, 984, 1230, 1640, 1766, 1968, 2460, 2531, 2649, 3280, 3532, 4415, 4920, 5062, 5298, 7064, 7593, 8830, 9840, 10124, 10596, 12655, 13245, 14128, 15186, 17660, 20248, 21192, 25310, 26490, 30372, 35320, 36203, 37965, 40496, 42384, 50620, 52980, 60744, 70640, 72406, 75930, 101240, 103771, 105960, 108609, 121488, 144812, 151860, 181015, 202480, 207542, 211920, 217218, 289624, 303720, 311313, 362030, 415084, 434436, 518855, 543045, 579248, 607440, 622626, 724060, 830168, 868872, 1037710, 1086090, 1245252, 1448120, 1556565, 1660336, 1737744, 2075420, 2172180, 2234873, 2490504, 2896240, 3113130, 4150840, 4344360, 4469746, 4981008, 6226260, 6704619, 8301680, 8688720, 8939492, 11174365, 12452520, 13409238, 17878984, 22348730, 24905040, 26818476, 33523095, 35757968, 44697460, 53636952, 67046190, 89394920, 91629793, 107273904, 134092380, 178789840, 183259586, 268184760, 274889379, 366519172, 458148965, 536369520, 549778758, 733038344, 916297930, 1099557516, 1374446895, 1466076688, 1832595860, 2199115032, 2748893790, 3665191720, 4398230064, 5497787580, 7330383440, 10995575160, 21991150320]

約数ペア:

[(1, 21991150320), (2, 10995575160), (3, 7330383440), (4, 5497787580), (5, 4398230064), (6, 3665191720), (8, 2748893790), (10, 2199115032), (12, 1832595860), (15, 1466076688), (16, 1374446895), (20, 1099557516), (24, 916297930), (30, 733038344), (40, 549778758), (41, 536369520), (48, 458148965), (60, 366519172), (80, 274889379), (82, 268184760), (120, 183259586), (123, 178789840), (164, 134092380), (205, 107273904), (240, 91629793), (246, 89394920), (328, 67046190), (410, 53636952), (492, 44697460), (615, 35757968), (656, 33523095), (820, 26818476), (883, 24905040), (984, 22348730), (1230, 17878984), (1640, 13409238), (1766, 12452520), (1968, 11174365), (2460, 8939492), (2531, 8688720), (2649, 8301680), (3280, 6704619), (3532, 6226260), (4415, 4981008), (4920, 4469746), (5062, 4344360), (5298, 4150840), (7064, 3113130), (7593, 2896240), (8830, 2490504), (9840, 2234873), (10124, 2172180), (10596, 2075420), (12655, 1737744), (13245, 1660336), (14128, 1556565), (15186, 1448120), (17660, 1245252), (20248, 1086090), (21192, 1037710), (25310, 868872), (26490, 830168), (30372, 724060), (35320, 622626), (36203, 607440), (37965, 579248), (40496, 543045), (42384, 518855), (50620, 434436), (52980, 415084), (60744, 362030), (70640, 311313), (72406, 303720), (75930, 289624), (101240, 217218), (103771, 211920), (105960, 207542), (108609, 202480), (121488, 181015), (144812, 151860)]