81028920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5077}}^1$

素因数の和:5117

約数の個数: 128

約数和(自身を含む): 292492800

約数和(自身を除く): 211463880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5077, 5320, 7980, 10154, 15231, 15960, 20308, 25385, 30462, 35539, 40616, 50770, 60924, 71078, 76155, 96463, 101540, 106617, 121848, 142156, 152310, 177695, 192926, 203080, 213234, 284312, 289389, 304620, 355390, 385852, 426468, 482315, 533085, 578778, 609240, 675241, 710780, 771704, 852936, 964630, 1066170, 1157556, 1350482, 1421560, 1446945, 1929260, 2025723, 2132340, 2315112, 2700964, 2893890, 3376205, 3858520, 4051446, 4264680, 5401928, 5787780, 6752410, 8102892, 10128615, 11575560, 13504820, 16205784, 20257230, 27009640, 40514460, 81028920]

約数ペア:

[(1, 81028920), (2, 40514460), (3, 27009640), (4, 20257230), (5, 16205784), (6, 13504820), (7, 11575560), (8, 10128615), (10, 8102892), (12, 6752410), (14, 5787780), (15, 5401928), (19, 4264680), (20, 4051446), (21, 3858520), (24, 3376205), (28, 2893890), (30, 2700964), (35, 2315112), (38, 2132340), (40, 2025723), (42, 1929260), (56, 1446945), (57, 1421560), (60, 1350482), (70, 1157556), (76, 1066170), (84, 964630), (95, 852936), (105, 771704), (114, 710780), (120, 675241), (133, 609240), (140, 578778), (152, 533085), (168, 482315), (190, 426468), (210, 385852), (228, 355390), (266, 304620), (280, 289389), (285, 284312), (380, 213234), (399, 203080), (420, 192926), (456, 177695), (532, 152310), (570, 142156), (665, 121848), (760, 106617), (798, 101540), (840, 96463), (1064, 76155), (1140, 71078), (1330, 60924), (1596, 50770), (1995, 40616), (2280, 35539), (2660, 30462), (3192, 25385), (3990, 20308), (5077, 15960), (5320, 15231), (7980, 10154)]