80727920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{853}}^1$

素因数の和:899

約数の個数: 120

約数和(自身を含む): 232547616

約数和(自身を除く): 151819696

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 169, 182, 208, 260, 280, 338, 364, 455, 520, 560, 676, 728, 845, 853, 910, 1040, 1183, 1352, 1456, 1690, 1706, 1820, 2366, 2704, 3380, 3412, 3640, 4265, 4732, 5915, 5971, 6760, 6824, 7280, 8530, 9464, 11089, 11830, 11942, 13520, 13648, 17060, 18928, 22178, 23660, 23884, 29855, 34120, 44356, 47320, 47768, 55445, 59710, 68240, 77623, 88712, 94640, 95536, 110890, 119420, 144157, 155246, 177424, 221780, 238840, 288314, 310492, 388115, 443560, 477680, 576628, 620984, 720785, 776230, 887120, 1009099, 1153256, 1241968, 1441570, 1552460, 2018198, 2306512, 2883140, 3104920, 4036396, 5045495, 5766280, 6209840, 8072792, 10090990, 11532560, 16145584, 20181980, 40363960, 80727920]

約数ペア:

[(1, 80727920), (2, 40363960), (4, 20181980), (5, 16145584), (7, 11532560), (8, 10090990), (10, 8072792), (13, 6209840), (14, 5766280), (16, 5045495), (20, 4036396), (26, 3104920), (28, 2883140), (35, 2306512), (40, 2018198), (52, 1552460), (56, 1441570), (65, 1241968), (70, 1153256), (80, 1009099), (91, 887120), (104, 776230), (112, 720785), (130, 620984), (140, 576628), (169, 477680), (182, 443560), (208, 388115), (260, 310492), (280, 288314), (338, 238840), (364, 221780), (455, 177424), (520, 155246), (560, 144157), (676, 119420), (728, 110890), (845, 95536), (853, 94640), (910, 88712), (1040, 77623), (1183, 68240), (1352, 59710), (1456, 55445), (1690, 47768), (1706, 47320), (1820, 44356), (2366, 34120), (2704, 29855), (3380, 23884), (3412, 23660), (3640, 22178), (4265, 18928), (4732, 17060), (5915, 13648), (5971, 13520), (6760, 11942), (6824, 11830), (7280, 11089), (8530, 9464)]