42621280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:720

約数の個数: 96

約数和(自身を含む): 112105728

約数和(自身を除く): 69484448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 520, 620, 661, 806, 992, 1040, 1240, 1322, 1612, 2015, 2080, 2480, 2644, 3224, 3305, 4030, 4960, 5288, 6448, 6610, 8060, 8593, 10576, 12896, 13220, 16120, 17186, 20491, 21152, 26440, 32240, 34372, 40982, 42965, 52880, 64480, 68744, 81964, 85930, 102455, 105760, 137488, 163928, 171860, 204910, 266383, 274976, 327856, 343720, 409820, 532766, 655712, 687440, 819640, 1065532, 1331915, 1374880, 1639280, 2131064, 2663830, 3278560, 4262128, 5327660, 8524256, 10655320, 21310640, 42621280]

約数ペア:

[(1, 42621280), (2, 21310640), (4, 10655320), (5, 8524256), (8, 5327660), (10, 4262128), (13, 3278560), (16, 2663830), (20, 2131064), (26, 1639280), (31, 1374880), (32, 1331915), (40, 1065532), (52, 819640), (62, 687440), (65, 655712), (80, 532766), (104, 409820), (124, 343720), (130, 327856), (155, 274976), (160, 266383), (208, 204910), (248, 171860), (260, 163928), (310, 137488), (403, 105760), (416, 102455), (496, 85930), (520, 81964), (620, 68744), (661, 64480), (806, 52880), (992, 42965), (1040, 40982), (1240, 34372), (1322, 32240), (1612, 26440), (2015, 21152), (2080, 20491), (2480, 17186), (2644, 16120), (3224, 13220), (3305, 12896), (4030, 10576), (4960, 8593), (5288, 8060), (6448, 6610)]