981240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:81

約数の個数: 128

約数和(自身を含む): 3447360

約数和(自身を除く): 2466120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 37, 39, 40, 51, 52, 60, 65, 68, 74, 78, 85, 102, 104, 111, 120, 130, 136, 148, 156, 170, 185, 195, 204, 221, 222, 255, 260, 296, 312, 340, 370, 390, 408, 442, 444, 481, 510, 520, 555, 629, 663, 680, 740, 780, 884, 888, 962, 1020, 1105, 1110, 1258, 1326, 1443, 1480, 1560, 1768, 1887, 1924, 2040, 2210, 2220, 2405, 2516, 2652, 2886, 3145, 3315, 3774, 3848, 4420, 4440, 4810, 5032, 5304, 5772, 6290, 6630, 7215, 7548, 8177, 8840, 9435, 9620, 11544, 12580, 13260, 14430, 15096, 16354, 18870, 19240, 24531, 25160, 26520, 28860, 32708, 37740, 40885, 49062, 57720, 65416, 75480, 81770, 98124, 122655, 163540, 196248, 245310, 327080, 490620, 981240]

約数ペア:

[(1, 981240), (2, 490620), (3, 327080), (4, 245310), (5, 196248), (6, 163540), (8, 122655), (10, 98124), (12, 81770), (13, 75480), (15, 65416), (17, 57720), (20, 49062), (24, 40885), (26, 37740), (30, 32708), (34, 28860), (37, 26520), (39, 25160), (40, 24531), (51, 19240), (52, 18870), (60, 16354), (65, 15096), (68, 14430), (74, 13260), (78, 12580), (85, 11544), (102, 9620), (104, 9435), (111, 8840), (120, 8177), (130, 7548), (136, 7215), (148, 6630), (156, 6290), (170, 5772), (185, 5304), (195, 5032), (204, 4810), (221, 4440), (222, 4420), (255, 3848), (260, 3774), (296, 3315), (312, 3145), (340, 2886), (370, 2652), (390, 2516), (408, 2405), (442, 2220), (444, 2210), (481, 2040), (510, 1924), (520, 1887), (555, 1768), (629, 1560), (663, 1480), (680, 1443), (740, 1326), (780, 1258), (884, 1110), (888, 1105), (962, 1020)]