31227210

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:197

約数の個数: 144

約数和(自身を含む): 96727176

約数和(自身を除く): 65499966

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 73, 90, 97, 98, 105, 126, 146, 147, 194, 210, 219, 245, 291, 294, 315, 365, 438, 441, 485, 490, 511, 582, 630, 657, 679, 730, 735, 873, 882, 970, 1022, 1095, 1314, 1358, 1455, 1470, 1533, 1746, 2037, 2190, 2205, 2555, 2910, 3066, 3285, 3395, 3577, 4074, 4365, 4410, 4599, 4753, 5110, 6111, 6570, 6790, 7081, 7154, 7665, 8730, 9198, 9506, 10185, 10731, 12222, 14162, 14259, 15330, 17885, 20370, 21243, 21462, 22995, 23765, 28518, 30555, 32193, 35405, 35770, 42486, 42777, 45990, 47530, 49567, 53655, 61110, 63729, 64386, 70810, 71295, 85554, 99134, 106215, 107310, 127458, 142590, 148701, 160965, 212430, 213885, 247835, 297402, 318645, 321930, 346969, 427770, 446103, 495670, 637290, 693938, 743505, 892206, 1040907, 1487010, 1734845, 2081814, 2230515, 3122721, 3469690, 4461030, 5204535, 6245442, 10409070, 15613605, 31227210]

約数ペア:

[(1, 31227210), (2, 15613605), (3, 10409070), (5, 6245442), (6, 5204535), (7, 4461030), (9, 3469690), (10, 3122721), (14, 2230515), (15, 2081814), (18, 1734845), (21, 1487010), (30, 1040907), (35, 892206), (42, 743505), (45, 693938), (49, 637290), (63, 495670), (70, 446103), (73, 427770), (90, 346969), (97, 321930), (98, 318645), (105, 297402), (126, 247835), (146, 213885), (147, 212430), (194, 160965), (210, 148701), (219, 142590), (245, 127458), (291, 107310), (294, 106215), (315, 99134), (365, 85554), (438, 71295), (441, 70810), (485, 64386), (490, 63729), (511, 61110), (582, 53655), (630, 49567), (657, 47530), (679, 45990), (730, 42777), (735, 42486), (873, 35770), (882, 35405), (970, 32193), (1022, 30555), (1095, 28518), (1314, 23765), (1358, 22995), (1455, 21462), (1470, 21243), (1533, 20370), (1746, 17885), (2037, 15330), (2190, 14259), (2205, 14162), (2555, 12222), (2910, 10731), (3066, 10185), (3285, 9506), (3395, 9198), (3577, 8730), (4074, 7665), (4365, 7154), (4410, 7081), (4599, 6790), (4753, 6570), (5110, 6111)]