28773420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{997}}^1$

素因数の和:1059

約数の個数: 96

約数和(自身を含む): 89197248

約数和(自身を除く): 60423828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 37, 39, 52, 60, 65, 74, 78, 111, 130, 148, 156, 185, 195, 222, 260, 370, 390, 444, 481, 555, 740, 780, 962, 997, 1110, 1443, 1924, 1994, 2220, 2405, 2886, 2991, 3988, 4810, 4985, 5772, 5982, 7215, 9620, 9970, 11964, 12961, 14430, 14955, 19940, 25922, 28860, 29910, 36889, 38883, 51844, 59820, 64805, 73778, 77766, 110667, 129610, 147556, 155532, 184445, 194415, 221334, 259220, 368890, 388830, 442668, 479557, 553335, 737780, 777660, 959114, 1106670, 1438671, 1918228, 2213340, 2397785, 2877342, 4795570, 5754684, 7193355, 9591140, 14386710, 28773420]

約数ペア:

[(1, 28773420), (2, 14386710), (3, 9591140), (4, 7193355), (5, 5754684), (6, 4795570), (10, 2877342), (12, 2397785), (13, 2213340), (15, 1918228), (20, 1438671), (26, 1106670), (30, 959114), (37, 777660), (39, 737780), (52, 553335), (60, 479557), (65, 442668), (74, 388830), (78, 368890), (111, 259220), (130, 221334), (148, 194415), (156, 184445), (185, 155532), (195, 147556), (222, 129610), (260, 110667), (370, 77766), (390, 73778), (444, 64805), (481, 59820), (555, 51844), (740, 38883), (780, 36889), (962, 29910), (997, 28860), (1110, 25922), (1443, 19940), (1924, 14955), (1994, 14430), (2220, 12961), (2405, 11964), (2886, 9970), (2991, 9620), (3988, 7215), (4810, 5982), (4985, 5772)]