991550340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{26357}}^1$

素因数の和:26402

約数の個数: 144

約数和(自身を含む): 3453952320

約数和(自身を除く): 2462401980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 220, 228, 285, 330, 342, 380, 396, 418, 495, 570, 627, 660, 684, 836, 855, 990, 1045, 1140, 1254, 1710, 1881, 1980, 2090, 2508, 3135, 3420, 3762, 4180, 6270, 7524, 9405, 12540, 18810, 26357, 37620, 52714, 79071, 105428, 131785, 158142, 237213, 263570, 289927, 316284, 395355, 474426, 500783, 527140, 579854, 790710, 869781, 948852, 1001566, 1159708, 1186065, 1449635, 1502349, 1581420, 1739562, 2003132, 2372130, 2503915, 2609343, 2899270, 3004698, 3479124, 4348905, 4507047, 4744260, 5007830, 5218686, 5508613, 5798540, 6009396, 7511745, 8697810, 9014094, 10015660, 10437372, 11017226, 13046715, 15023490, 16525839, 17395620, 18028188, 22034452, 22535235, 26093430, 27543065, 30046980, 33051678, 45070470, 49577517, 52186860, 55086130, 66103356, 82629195, 90140940, 99155034, 110172260, 165258390, 198310068, 247887585, 330516780, 495775170, 991550340]

約数ペア:

[(1, 991550340), (2, 495775170), (3, 330516780), (4, 247887585), (5, 198310068), (6, 165258390), (9, 110172260), (10, 99155034), (11, 90140940), (12, 82629195), (15, 66103356), (18, 55086130), (19, 52186860), (20, 49577517), (22, 45070470), (30, 33051678), (33, 30046980), (36, 27543065), (38, 26093430), (44, 22535235), (45, 22034452), (55, 18028188), (57, 17395620), (60, 16525839), (66, 15023490), (76, 13046715), (90, 11017226), (95, 10437372), (99, 10015660), (110, 9014094), (114, 8697810), (132, 7511745), (165, 6009396), (171, 5798540), (180, 5508613), (190, 5218686), (198, 5007830), (209, 4744260), (220, 4507047), (228, 4348905), (285, 3479124), (330, 3004698), (342, 2899270), (380, 2609343), (396, 2503915), (418, 2372130), (495, 2003132), (570, 1739562), (627, 1581420), (660, 1502349), (684, 1449635), (836, 1186065), (855, 1159708), (990, 1001566), (1045, 948852), (1140, 869781), (1254, 790710), (1710, 579854), (1881, 527140), (1980, 500783), (2090, 474426), (2508, 395355), (3135, 316284), (3420, 289927), (3762, 263570), (4180, 237213), (6270, 158142), (7524, 131785), (9405, 105428), (12540, 79071), (18810, 52714), (26357, 37620)]