398493940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1013}}^1$

素因数の和:1141

約数の個数: 96

約数和(自身を含む): 965895840

約数和(自身を除く): 567401900

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 89, 130, 170, 178, 221, 260, 340, 356, 442, 445, 884, 890, 1013, 1105, 1157, 1513, 1780, 2026, 2210, 2314, 3026, 4052, 4420, 4628, 5065, 5785, 6052, 7565, 10130, 11570, 13169, 15130, 17221, 19669, 20260, 23140, 26338, 30260, 34442, 39338, 52676, 65845, 68884, 78676, 86105, 90157, 98345, 131690, 172210, 180314, 196690, 223873, 263380, 344420, 360628, 393380, 447746, 450785, 895492, 901570, 1119365, 1172041, 1532669, 1803140, 2238730, 2344082, 3065338, 4477460, 4688164, 5860205, 6130676, 7663345, 11720410, 15326690, 19924697, 23440820, 30653380, 39849394, 79698788, 99623485, 199246970, 398493940]

約数ペア:

[(1, 398493940), (2, 199246970), (4, 99623485), (5, 79698788), (10, 39849394), (13, 30653380), (17, 23440820), (20, 19924697), (26, 15326690), (34, 11720410), (52, 7663345), (65, 6130676), (68, 5860205), (85, 4688164), (89, 4477460), (130, 3065338), (170, 2344082), (178, 2238730), (221, 1803140), (260, 1532669), (340, 1172041), (356, 1119365), (442, 901570), (445, 895492), (884, 450785), (890, 447746), (1013, 393380), (1105, 360628), (1157, 344420), (1513, 263380), (1780, 223873), (2026, 196690), (2210, 180314), (2314, 172210), (3026, 131690), (4052, 98345), (4420, 90157), (4628, 86105), (5065, 78676), (5785, 68884), (6052, 65845), (7565, 52676), (10130, 39338), (11570, 34442), (13169, 30260), (15130, 26338), (17221, 23140), (19669, 20260)]