51402780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2036

約数の個数: 144

約数和(自身を含む): 183272544

約数和(自身を除く): 131869764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 286, 330, 390, 396, 429, 468, 495, 572, 585, 660, 715, 780, 858, 990, 1170, 1287, 1430, 1716, 1980, 1997, 2145, 2340, 2574, 2860, 3994, 4290, 5148, 5991, 6435, 7988, 8580, 9985, 11982, 12870, 17973, 19970, 21967, 23964, 25740, 25961, 29955, 35946, 39940, 43934, 51922, 59910, 65901, 71892, 77883, 87868, 89865, 103844, 109835, 119820, 129805, 131802, 155766, 179730, 197703, 219670, 233649, 259610, 263604, 285571, 311532, 329505, 359460, 389415, 395406, 439340, 467298, 519220, 571142, 659010, 778830, 790812, 856713, 934596, 988515, 1142284, 1168245, 1318020, 1427855, 1557660, 1713426, 1977030, 2336490, 2570139, 2855710, 3426852, 3954060, 4283565, 4672980, 5140278, 5711420, 8567130, 10280556, 12850695, 17134260, 25701390, 51402780]

約数ペア:

[(1, 51402780), (2, 25701390), (3, 17134260), (4, 12850695), (5, 10280556), (6, 8567130), (9, 5711420), (10, 5140278), (11, 4672980), (12, 4283565), (13, 3954060), (15, 3426852), (18, 2855710), (20, 2570139), (22, 2336490), (26, 1977030), (30, 1713426), (33, 1557660), (36, 1427855), (39, 1318020), (44, 1168245), (45, 1142284), (52, 988515), (55, 934596), (60, 856713), (65, 790812), (66, 778830), (78, 659010), (90, 571142), (99, 519220), (110, 467298), (117, 439340), (130, 395406), (132, 389415), (143, 359460), (156, 329505), (165, 311532), (180, 285571), (195, 263604), (198, 259610), (220, 233649), (234, 219670), (260, 197703), (286, 179730), (330, 155766), (390, 131802), (396, 129805), (429, 119820), (468, 109835), (495, 103844), (572, 89865), (585, 87868), (660, 77883), (715, 71892), (780, 65901), (858, 59910), (990, 51922), (1170, 43934), (1287, 39940), (1430, 35946), (1716, 29955), (1980, 25961), (1997, 25740), (2145, 23964), (2340, 21967), (2574, 19970), (2860, 17973), (3994, 12870), (4290, 11982), (5148, 9985), (5991, 8580), (6435, 7988)]