255427380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6421}}^1$

素因数の和:6466

約数の個数: 144

約数和(自身を含む): 883615824

約数和(自身を除く): 628188444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 1020, 1105, 1170, 1326, 1530, 1989, 2210, 2340, 2652, 3060, 3315, 3978, 4420, 6421, 6630, 7956, 9945, 12842, 13260, 19263, 19890, 25684, 32105, 38526, 39780, 57789, 64210, 77052, 83473, 96315, 109157, 115578, 128420, 166946, 192630, 218314, 231156, 250419, 288945, 327471, 333892, 385260, 417365, 436628, 500838, 545785, 577890, 654942, 751257, 834730, 982413, 1001676, 1091570, 1155780, 1252095, 1309884, 1419041, 1502514, 1637355, 1669460, 1964826, 2183140, 2504190, 2838082, 3005028, 3274710, 3756285, 3929652, 4257123, 4912065, 5008380, 5676164, 6549420, 7095205, 7512570, 8514246, 9824130, 12771369, 14190410, 15025140, 17028492, 19648260, 21285615, 25542738, 28380820, 42571230, 51085476, 63856845, 85142460, 127713690, 255427380]

約数ペア:

[(1, 255427380), (2, 127713690), (3, 85142460), (4, 63856845), (5, 51085476), (6, 42571230), (9, 28380820), (10, 25542738), (12, 21285615), (13, 19648260), (15, 17028492), (17, 15025140), (18, 14190410), (20, 12771369), (26, 9824130), (30, 8514246), (34, 7512570), (36, 7095205), (39, 6549420), (45, 5676164), (51, 5008380), (52, 4912065), (60, 4257123), (65, 3929652), (68, 3756285), (78, 3274710), (85, 3005028), (90, 2838082), (102, 2504190), (117, 2183140), (130, 1964826), (153, 1669460), (156, 1637355), (170, 1502514), (180, 1419041), (195, 1309884), (204, 1252095), (221, 1155780), (234, 1091570), (255, 1001676), (260, 982413), (306, 834730), (340, 751257), (390, 654942), (442, 577890), (468, 545785), (510, 500838), (585, 436628), (612, 417365), (663, 385260), (765, 333892), (780, 327471), (884, 288945), (1020, 250419), (1105, 231156), (1170, 218314), (1326, 192630), (1530, 166946), (1989, 128420), (2210, 115578), (2340, 109157), (2652, 96315), (3060, 83473), (3315, 77052), (3978, 64210), (4420, 57789), (6421, 39780), (6630, 38526), (7956, 32105), (9945, 25684), (12842, 19890), (13260, 19263)]