161878961920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{748331}}^1$

素因数の和:748378

約数の個数: 108

約数和(自身を含む): 419872621896

約数和(自身を除く): 257993659976

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 338, 416, 520, 640, 676, 832, 845, 1040, 1280, 1352, 1664, 1690, 2080, 2704, 3328, 3380, 4160, 5408, 6760, 8320, 10816, 13520, 16640, 21632, 27040, 43264, 54080, 108160, 216320, 748331, 1496662, 2993324, 3741655, 5986648, 7483310, 9728303, 11973296, 14966620, 19456606, 23946592, 29933240, 38913212, 47893184, 48641515, 59866480, 77826424, 95786368, 97283030, 119732960, 126467939, 155652848, 191572736, 194566060, 239465920, 252935878, 311305696, 389132120, 478931840, 505871756, 622611392, 632339695, 778264240, 957863680, 1011743512, 1245222784, 1264679390, 1556528480, 2023487024, 2490445568, 2529358780, 3113056960, 4046974048, 5058717560, 6226113920, 8093948096, 10117435120, 12452227840, 16187896192, 20234870240, 32375792384, 40469740480, 80939480960, 161878961920]

約数ペア:

[(1, 161878961920), (2, 80939480960), (4, 40469740480), (5, 32375792384), (8, 20234870240), (10, 16187896192), (13, 12452227840), (16, 10117435120), (20, 8093948096), (26, 6226113920), (32, 5058717560), (40, 4046974048), (52, 3113056960), (64, 2529358780), (65, 2490445568), (80, 2023487024), (104, 1556528480), (128, 1264679390), (130, 1245222784), (160, 1011743512), (169, 957863680), (208, 778264240), (256, 632339695), (260, 622611392), (320, 505871756), (338, 478931840), (416, 389132120), (520, 311305696), (640, 252935878), (676, 239465920), (832, 194566060), (845, 191572736), (1040, 155652848), (1280, 126467939), (1352, 119732960), (1664, 97283030), (1690, 95786368), (2080, 77826424), (2704, 59866480), (3328, 48641515), (3380, 47893184), (4160, 38913212), (5408, 29933240), (6760, 23946592), (8320, 19456606), (10816, 14966620), (13520, 11973296), (16640, 9728303), (21632, 7483310), (27040, 5986648), (43264, 3741655), (54080, 2993324), (108160, 1496662), (216320, 748331)]