20723778880

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{151667}}^1$

素因数の和:151752

約数の個数: 112

約数和(自身を含む): 57323223936

約数和(自身を除く): 36599445056

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 140, 160, 224, 244, 280, 305, 320, 427, 448, 488, 560, 610, 854, 976, 1120, 1220, 1708, 1952, 2135, 2240, 2440, 3416, 3904, 4270, 4880, 6832, 8540, 9760, 13664, 17080, 19520, 27328, 34160, 68320, 136640, 151667, 303334, 606668, 758335, 1061669, 1213336, 1516670, 2123338, 2426672, 3033340, 4246676, 4853344, 5308345, 6066680, 8493352, 9251687, 9706688, 10616690, 12133360, 16986704, 18503374, 21233380, 24266720, 33973408, 37006748, 42466760, 46258435, 48533440, 64761809, 67946816, 74013496, 84933520, 92516870, 129523618, 148026992, 169867040, 185033740, 259047236, 296053984, 323809045, 339734080, 370067480, 518094472, 592107968, 647618090, 740134960, 1036188944, 1295236180, 1480269920, 2072377888, 2590472360, 2960539840, 4144755776, 5180944720, 10361889440, 20723778880]

約数ペア:

[(1, 20723778880), (2, 10361889440), (4, 5180944720), (5, 4144755776), (7, 2960539840), (8, 2590472360), (10, 2072377888), (14, 1480269920), (16, 1295236180), (20, 1036188944), (28, 740134960), (32, 647618090), (35, 592107968), (40, 518094472), (56, 370067480), (61, 339734080), (64, 323809045), (70, 296053984), (80, 259047236), (112, 185033740), (122, 169867040), (140, 148026992), (160, 129523618), (224, 92516870), (244, 84933520), (280, 74013496), (305, 67946816), (320, 64761809), (427, 48533440), (448, 46258435), (488, 42466760), (560, 37006748), (610, 33973408), (854, 24266720), (976, 21233380), (1120, 18503374), (1220, 16986704), (1708, 12133360), (1952, 10616690), (2135, 9706688), (2240, 9251687), (2440, 8493352), (3416, 6066680), (3904, 5308345), (4270, 4853344), (4880, 4246676), (6832, 3033340), (8540, 2426672), (9760, 2123338), (13664, 1516670), (17080, 1213336), (19520, 1061669), (27328, 758335), (34160, 606668), (68320, 303334), (136640, 151667)]