154885720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:329

約数の個数: 128

約数和(自身を含む): 406425600

約数和(自身を除く): 251539880

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 97, 110, 152, 190, 191, 194, 209, 220, 380, 382, 388, 418, 440, 485, 760, 764, 776, 836, 955, 970, 1045, 1067, 1528, 1672, 1843, 1910, 1940, 2090, 2101, 2134, 3629, 3686, 3820, 3880, 4180, 4202, 4268, 5335, 7258, 7372, 7640, 8360, 8404, 8536, 9215, 10505, 10670, 14516, 14744, 16808, 18145, 18430, 18527, 20273, 21010, 21340, 29032, 36290, 36860, 37054, 39919, 40546, 42020, 42680, 72580, 73720, 74108, 79838, 81092, 84040, 92635, 101365, 145160, 148216, 159676, 162184, 185270, 199595, 202730, 203797, 319352, 352013, 370540, 399190, 405460, 407594, 704026, 741080, 798380, 810920, 815188, 1018985, 1408052, 1596760, 1630376, 1760065, 2037970, 2816104, 3520130, 3872143, 4075940, 7040260, 7744286, 8151880, 14080520, 15488572, 19360715, 30977144, 38721430, 77442860, 154885720]

約数ペア:

[(1, 154885720), (2, 77442860), (4, 38721430), (5, 30977144), (8, 19360715), (10, 15488572), (11, 14080520), (19, 8151880), (20, 7744286), (22, 7040260), (38, 4075940), (40, 3872143), (44, 3520130), (55, 2816104), (76, 2037970), (88, 1760065), (95, 1630376), (97, 1596760), (110, 1408052), (152, 1018985), (190, 815188), (191, 810920), (194, 798380), (209, 741080), (220, 704026), (380, 407594), (382, 405460), (388, 399190), (418, 370540), (440, 352013), (485, 319352), (760, 203797), (764, 202730), (776, 199595), (836, 185270), (955, 162184), (970, 159676), (1045, 148216), (1067, 145160), (1528, 101365), (1672, 92635), (1843, 84040), (1910, 81092), (1940, 79838), (2090, 74108), (2101, 73720), (2134, 72580), (3629, 42680), (3686, 42020), (3820, 40546), (3880, 39919), (4180, 37054), (4202, 36860), (4268, 36290), (5335, 29032), (7258, 21340), (7372, 21010), (7640, 20273), (8360, 18527), (8404, 18430), (8536, 18145), (9215, 16808), (10505, 14744), (10670, 14516)]