18118260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 60383232

約数和(自身を除く): 42264972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 31, 34, 36, 45, 51, 60, 62, 68, 85, 90, 93, 102, 124, 153, 155, 170, 180, 186, 191, 204, 255, 279, 306, 310, 340, 372, 382, 465, 510, 527, 558, 573, 612, 620, 764, 765, 930, 955, 1020, 1054, 1116, 1146, 1395, 1530, 1581, 1719, 1860, 1910, 2108, 2292, 2635, 2790, 2865, 3060, 3162, 3247, 3438, 3820, 4743, 5270, 5580, 5730, 5921, 6324, 6494, 6876, 7905, 8595, 9486, 9741, 10540, 11460, 11842, 12988, 15810, 16235, 17190, 17763, 18972, 19482, 23684, 23715, 29223, 29605, 31620, 32470, 34380, 35526, 38964, 47430, 48705, 53289, 58446, 59210, 64940, 71052, 88815, 94860, 97410, 100657, 106578, 116892, 118420, 146115, 177630, 194820, 201314, 213156, 266445, 292230, 301971, 355260, 402628, 503285, 532890, 584460, 603942, 905913, 1006570, 1065780, 1207884, 1509855, 1811826, 2013140, 3019710, 3623652, 4529565, 6039420, 9059130, 18118260]

約数ペア:

[(1, 18118260), (2, 9059130), (3, 6039420), (4, 4529565), (5, 3623652), (6, 3019710), (9, 2013140), (10, 1811826), (12, 1509855), (15, 1207884), (17, 1065780), (18, 1006570), (20, 905913), (30, 603942), (31, 584460), (34, 532890), (36, 503285), (45, 402628), (51, 355260), (60, 301971), (62, 292230), (68, 266445), (85, 213156), (90, 201314), (93, 194820), (102, 177630), (124, 146115), (153, 118420), (155, 116892), (170, 106578), (180, 100657), (186, 97410), (191, 94860), (204, 88815), (255, 71052), (279, 64940), (306, 59210), (310, 58446), (340, 53289), (372, 48705), (382, 47430), (465, 38964), (510, 35526), (527, 34380), (558, 32470), (573, 31620), (612, 29605), (620, 29223), (764, 23715), (765, 23684), (930, 19482), (955, 18972), (1020, 17763), (1054, 17190), (1116, 16235), (1146, 15810), (1395, 12988), (1530, 11842), (1581, 11460), (1719, 10540), (1860, 9741), (1910, 9486), (2108, 8595), (2292, 7905), (2635, 6876), (2790, 6494), (2865, 6324), (3060, 5921), (3162, 5730), (3247, 5580), (3438, 5270), (3820, 4743)]