20177072920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1\times {\mathrm{1597}}^1$

素因数の和:2105

約数の個数: 128

約数和(自身を含む): 49041469440

約数和(自身を除く): 28864396520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 443, 460, 620, 713, 886, 920, 1240, 1426, 1597, 1772, 2215, 2852, 3194, 3544, 3565, 4430, 5704, 6388, 7130, 7985, 8860, 10189, 12776, 13733, 14260, 15970, 17720, 20378, 27466, 28520, 31940, 36731, 40756, 49507, 50945, 54932, 63880, 68665, 73462, 81512, 99014, 101890, 109864, 137330, 146924, 183655, 198028, 203780, 247535, 274660, 293848, 315859, 367310, 396056, 407560, 495070, 549320, 631718, 707471, 734620, 990140, 1138661, 1263436, 1414942, 1469240, 1579295, 1980280, 2277322, 2526872, 2829884, 3158590, 3537355, 4554644, 5659768, 5693305, 6317180, 7074710, 9109288, 11386610, 12634360, 14149420, 16271833, 21931601, 22773220, 28298840, 32543666, 43863202, 45546440, 65087332, 81359165, 87726404, 109658005, 130174664, 162718330, 175452808, 219316010, 325436660, 438632020, 504426823, 650873320, 877264040, 1008853646, 2017707292, 2522134115, 4035414584, 5044268230, 10088536460, 20177072920]

約数ペア:

[(1, 20177072920), (2, 10088536460), (4, 5044268230), (5, 4035414584), (8, 2522134115), (10, 2017707292), (20, 1008853646), (23, 877264040), (31, 650873320), (40, 504426823), (46, 438632020), (62, 325436660), (92, 219316010), (115, 175452808), (124, 162718330), (155, 130174664), (184, 109658005), (230, 87726404), (248, 81359165), (310, 65087332), (443, 45546440), (460, 43863202), (620, 32543666), (713, 28298840), (886, 22773220), (920, 21931601), (1240, 16271833), (1426, 14149420), (1597, 12634360), (1772, 11386610), (2215, 9109288), (2852, 7074710), (3194, 6317180), (3544, 5693305), (3565, 5659768), (4430, 4554644), (5704, 3537355), (6388, 3158590), (7130, 2829884), (7985, 2526872), (8860, 2277322), (10189, 1980280), (12776, 1579295), (13733, 1469240), (14260, 1414942), (15970, 1263436), (17720, 1138661), (20378, 990140), (27466, 734620), (28520, 707471), (31940, 631718), (36731, 549320), (40756, 495070), (49507, 407560), (50945, 396056), (54932, 367310), (63880, 315859), (68665, 293848), (73462, 274660), (81512, 247535), (99014, 203780), (101890, 198028), (109864, 183655), (137330, 146924)]