28687440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5197}}^1$

素因数の和:5236

約数の個数: 80

約数和(自身を含む): 92815488

約数和(自身を除く): 64128048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 5197, 5520, 10394, 15591, 20788, 25985, 31182, 41576, 51970, 62364, 77955, 83152, 103940, 119531, 124728, 155910, 207880, 239062, 249456, 311820, 358593, 415760, 478124, 597655, 623640, 717186, 956248, 1195310, 1247280, 1434372, 1792965, 1912496, 2390620, 2868744, 3585930, 4781240, 5737488, 7171860, 9562480, 14343720, 28687440]

約数ペア:

[(1, 28687440), (2, 14343720), (3, 9562480), (4, 7171860), (5, 5737488), (6, 4781240), (8, 3585930), (10, 2868744), (12, 2390620), (15, 1912496), (16, 1792965), (20, 1434372), (23, 1247280), (24, 1195310), (30, 956248), (40, 717186), (46, 623640), (48, 597655), (60, 478124), (69, 415760), (80, 358593), (92, 311820), (115, 249456), (120, 239062), (138, 207880), (184, 155910), (230, 124728), (240, 119531), (276, 103940), (345, 83152), (368, 77955), (460, 62364), (552, 51970), (690, 41576), (920, 31182), (1104, 25985), (1380, 20788), (1840, 15591), (2760, 10394), (5197, 5520)]