257103200

素因数分解:

$2^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 144

約数和(自身を含む): 666519840

約数和(自身を除く): 409416640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 80, 89, 92, 100, 115, 157, 160, 178, 184, 200, 230, 314, 356, 368, 400, 445, 460, 575, 628, 712, 736, 785, 800, 890, 920, 1150, 1256, 1424, 1570, 1780, 1840, 2047, 2225, 2300, 2512, 2848, 3140, 3560, 3611, 3680, 3925, 4094, 4450, 4600, 5024, 6280, 7120, 7222, 7850, 8188, 8900, 9200, 10235, 12560, 13973, 14240, 14444, 15700, 16376, 17800, 18055, 18400, 20470, 25120, 27946, 28888, 31400, 32752, 35600, 36110, 40940, 51175, 55892, 57776, 62800, 65504, 69865, 71200, 72220, 81880, 90275, 102350, 111784, 115552, 125600, 139730, 144440, 163760, 180550, 204700, 223568, 279460, 288880, 321379, 327520, 349325, 361100, 409400, 447136, 558920, 577760, 642758, 698650, 722200, 818800, 1117840, 1285516, 1397300, 1444400, 1606895, 1637600, 2235680, 2571032, 2794600, 2888800, 3213790, 5142064, 5589200, 6427580, 8034475, 10284128, 11178400, 12855160, 16068950, 25710320, 32137900, 51420640, 64275800, 128551600, 257103200]

約数ペア:

[(1, 257103200), (2, 128551600), (4, 64275800), (5, 51420640), (8, 32137900), (10, 25710320), (16, 16068950), (20, 12855160), (23, 11178400), (25, 10284128), (32, 8034475), (40, 6427580), (46, 5589200), (50, 5142064), (80, 3213790), (89, 2888800), (92, 2794600), (100, 2571032), (115, 2235680), (157, 1637600), (160, 1606895), (178, 1444400), (184, 1397300), (200, 1285516), (230, 1117840), (314, 818800), (356, 722200), (368, 698650), (400, 642758), (445, 577760), (460, 558920), (575, 447136), (628, 409400), (712, 361100), (736, 349325), (785, 327520), (800, 321379), (890, 288880), (920, 279460), (1150, 223568), (1256, 204700), (1424, 180550), (1570, 163760), (1780, 144440), (1840, 139730), (2047, 125600), (2225, 115552), (2300, 111784), (2512, 102350), (2848, 90275), (3140, 81880), (3560, 72220), (3611, 71200), (3680, 69865), (3925, 65504), (4094, 62800), (4450, 57776), (4600, 55892), (5024, 51175), (6280, 40940), (7120, 36110), (7222, 35600), (7850, 32752), (8188, 31400), (8900, 28888), (9200, 27946), (10235, 25120), (12560, 20470), (13973, 18400), (14240, 18055), (14444, 17800), (15700, 16376)]