647519050

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1619}}^1$

素因数の和:2071

約数の個数: 48

約数和(自身を含む): 1271570400

約数和(自身を除く): 624051350

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 421, 475, 842, 950, 1619, 2105, 3238, 4210, 7999, 8095, 10525, 15998, 16190, 21050, 30761, 39995, 40475, 61522, 79990, 80950, 153805, 199975, 307610, 399950, 681599, 769025, 1363198, 1538050, 3407995, 6815990, 12950381, 17039975, 25900762, 34079950, 64751905, 129503810, 323759525, 647519050]

約数ペア:

[(1, 647519050), (2, 323759525), (5, 129503810), (10, 64751905), (19, 34079950), (25, 25900762), (38, 17039975), (50, 12950381), (95, 6815990), (190, 3407995), (421, 1538050), (475, 1363198), (842, 769025), (950, 681599), (1619, 399950), (2105, 307610), (3238, 199975), (4210, 153805), (7999, 80950), (8095, 79990), (10525, 61522), (15998, 40475), (16190, 39995), (21050, 30761)]