64509940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 144

約数和(自身を含む): 166239360

約数和(自身を除く): 101729420

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 23, 38, 44, 46, 55, 61, 76, 92, 95, 110, 115, 121, 122, 190, 209, 220, 230, 242, 244, 253, 305, 380, 418, 437, 460, 484, 506, 605, 610, 671, 836, 874, 1012, 1045, 1159, 1210, 1220, 1265, 1342, 1403, 1748, 2090, 2185, 2299, 2318, 2420, 2530, 2684, 2783, 2806, 3355, 4180, 4370, 4598, 4636, 4807, 5060, 5566, 5612, 5795, 6710, 7015, 7381, 8740, 9196, 9614, 11132, 11495, 11590, 12749, 13420, 13915, 14030, 14762, 15433, 19228, 22990, 23180, 24035, 25498, 26657, 27830, 28060, 29524, 30866, 36905, 45980, 48070, 50996, 52877, 53314, 55660, 61732, 63745, 73810, 77165, 96140, 105754, 106628, 127490, 133285, 140239, 147620, 154330, 169763, 211508, 254980, 264385, 266570, 280478, 293227, 308660, 339526, 528770, 533140, 560956, 586454, 679052, 701195, 848815, 1057540, 1172908, 1402390, 1466135, 1697630, 2804780, 2932270, 3225497, 3395260, 5864540, 6450994, 12901988, 16127485, 32254970, 64509940]

約数ペア:

[(1, 64509940), (2, 32254970), (4, 16127485), (5, 12901988), (10, 6450994), (11, 5864540), (19, 3395260), (20, 3225497), (22, 2932270), (23, 2804780), (38, 1697630), (44, 1466135), (46, 1402390), (55, 1172908), (61, 1057540), (76, 848815), (92, 701195), (95, 679052), (110, 586454), (115, 560956), (121, 533140), (122, 528770), (190, 339526), (209, 308660), (220, 293227), (230, 280478), (242, 266570), (244, 264385), (253, 254980), (305, 211508), (380, 169763), (418, 154330), (437, 147620), (460, 140239), (484, 133285), (506, 127490), (605, 106628), (610, 105754), (671, 96140), (836, 77165), (874, 73810), (1012, 63745), (1045, 61732), (1159, 55660), (1210, 53314), (1220, 52877), (1265, 50996), (1342, 48070), (1403, 45980), (1748, 36905), (2090, 30866), (2185, 29524), (2299, 28060), (2318, 27830), (2420, 26657), (2530, 25498), (2684, 24035), (2783, 23180), (2806, 22990), (3355, 19228), (4180, 15433), (4370, 14762), (4598, 14030), (4636, 13915), (4807, 13420), (5060, 12749), (5566, 11590), (5612, 11495), (5795, 11132), (6710, 9614), (7015, 9196), (7381, 8740)]