208673985

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 373476096

約数和(自身を除く): 164802111

約数列:

[1, 3, 5, 13, 15, 39, 53, 61, 65, 159, 183, 195, 265, 305, 331, 689, 793, 795, 915, 993, 1655, 2067, 2379, 3233, 3445, 3965, 4303, 4965, 9699, 10335, 11895, 12909, 16165, 17543, 20191, 21515, 42029, 48495, 52629, 60573, 64545, 87715, 100955, 126087, 210145, 228059, 262483, 263145, 302865, 630435, 684177, 787449, 1070123, 1140295, 1312415, 3210369, 3420885, 3937245, 5350615, 13911599, 16051845, 41734797, 69557995, 208673985]

約数ペア:

[(1, 208673985), (3, 69557995), (5, 41734797), (13, 16051845), (15, 13911599), (39, 5350615), (53, 3937245), (61, 3420885), (65, 3210369), (159, 1312415), (183, 1140295), (195, 1070123), (265, 787449), (305, 684177), (331, 630435), (689, 302865), (793, 263145), (795, 262483), (915, 228059), (993, 210145), (1655, 126087), (2067, 100955), (2379, 87715), (3233, 64545), (3445, 60573), (3965, 52629), (4303, 48495), (4965, 42029), (9699, 21515), (10335, 20191), (11895, 17543), (12909, 16165)]