81641790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4957}}^1$

素因数の和:5034

約数の個数: 64

約数和(自身を含む): 221325120

約数和(自身を除く): 139683330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 90, 122, 135, 183, 270, 305, 366, 549, 610, 915, 1098, 1647, 1830, 2745, 3294, 4957, 5490, 8235, 9914, 14871, 16470, 24785, 29742, 44613, 49570, 74355, 89226, 133839, 148710, 223065, 267678, 302377, 446130, 604754, 669195, 907131, 1338390, 1511885, 1814262, 2721393, 3023770, 4535655, 5442786, 8164179, 9071310, 13606965, 16328358, 27213930, 40820895, 81641790]

約数ペア:

[(1, 81641790), (2, 40820895), (3, 27213930), (5, 16328358), (6, 13606965), (9, 9071310), (10, 8164179), (15, 5442786), (18, 4535655), (27, 3023770), (30, 2721393), (45, 1814262), (54, 1511885), (61, 1338390), (90, 907131), (122, 669195), (135, 604754), (183, 446130), (270, 302377), (305, 267678), (366, 223065), (549, 148710), (610, 133839), (915, 89226), (1098, 74355), (1647, 49570), (1830, 44613), (2745, 29742), (3294, 24785), (4957, 16470), (5490, 14871), (8235, 9914)]