20656530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{587}}^1$

素因数の和:640

約数の個数: 96

約数和(自身を含む): 59439744

約数和(自身を除く): 38783214

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 23, 30, 34, 45, 46, 51, 69, 85, 90, 102, 115, 138, 153, 170, 207, 230, 255, 306, 345, 391, 414, 510, 587, 690, 765, 782, 1035, 1173, 1174, 1530, 1761, 1955, 2070, 2346, 2935, 3519, 3522, 3910, 5283, 5865, 5870, 7038, 8805, 9979, 10566, 11730, 13501, 17595, 17610, 19958, 26415, 27002, 29937, 35190, 40503, 49895, 52830, 59874, 67505, 81006, 89811, 99790, 121509, 135010, 149685, 179622, 202515, 229517, 243018, 299370, 405030, 449055, 459034, 607545, 688551, 898110, 1147585, 1215090, 1377102, 2065653, 2295170, 3442755, 4131306, 6885510, 10328265, 20656530]

約数ペア:

[(1, 20656530), (2, 10328265), (3, 6885510), (5, 4131306), (6, 3442755), (9, 2295170), (10, 2065653), (15, 1377102), (17, 1215090), (18, 1147585), (23, 898110), (30, 688551), (34, 607545), (45, 459034), (46, 449055), (51, 405030), (69, 299370), (85, 243018), (90, 229517), (102, 202515), (115, 179622), (138, 149685), (153, 135010), (170, 121509), (207, 99790), (230, 89811), (255, 81006), (306, 67505), (345, 59874), (391, 52830), (414, 49895), (510, 40503), (587, 35190), (690, 29937), (765, 27002), (782, 26415), (1035, 19958), (1173, 17610), (1174, 17595), (1530, 13501), (1761, 11730), (1955, 10566), (2070, 9979), (2346, 8805), (2935, 7038), (3519, 5870), (3522, 5865), (3910, 5283)]