71921220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1439}}^1$

素因数の和:1482

約数の個数: 144

約数和(自身を含む): 248209920

約数和(自身を除く): 176288700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 420, 476, 490, 510, 588, 595, 714, 735, 833, 980, 1020, 1190, 1428, 1439, 1470, 1666, 1785, 2380, 2499, 2878, 2940, 3332, 3570, 4165, 4317, 4998, 5756, 7140, 7195, 8330, 8634, 9996, 10073, 12495, 14390, 16660, 17268, 20146, 21585, 24463, 24990, 28780, 30219, 40292, 43170, 48926, 49980, 50365, 60438, 70511, 73389, 86340, 97852, 100730, 120876, 122315, 141022, 146778, 151095, 171241, 201460, 211533, 244630, 282044, 293556, 302190, 342482, 352555, 366945, 423066, 489260, 513723, 604380, 684964, 705110, 733890, 846132, 856205, 1027446, 1057665, 1198687, 1410220, 1467780, 1712410, 2054892, 2115330, 2397374, 2568615, 3424820, 3596061, 4230660, 4794748, 5137230, 5993435, 7192122, 10274460, 11986870, 14384244, 17980305, 23973740, 35960610, 71921220]

約数ペア:

[(1, 71921220), (2, 35960610), (3, 23973740), (4, 17980305), (5, 14384244), (6, 11986870), (7, 10274460), (10, 7192122), (12, 5993435), (14, 5137230), (15, 4794748), (17, 4230660), (20, 3596061), (21, 3424820), (28, 2568615), (30, 2397374), (34, 2115330), (35, 2054892), (42, 1712410), (49, 1467780), (51, 1410220), (60, 1198687), (68, 1057665), (70, 1027446), (84, 856205), (85, 846132), (98, 733890), (102, 705110), (105, 684964), (119, 604380), (140, 513723), (147, 489260), (170, 423066), (196, 366945), (204, 352555), (210, 342482), (238, 302190), (245, 293556), (255, 282044), (294, 244630), (340, 211533), (357, 201460), (420, 171241), (476, 151095), (490, 146778), (510, 141022), (588, 122315), (595, 120876), (714, 100730), (735, 97852), (833, 86340), (980, 73389), (1020, 70511), (1190, 60438), (1428, 50365), (1439, 49980), (1470, 48926), (1666, 43170), (1785, 40292), (2380, 30219), (2499, 28780), (2878, 24990), (2940, 24463), (3332, 21585), (3570, 20146), (4165, 17268), (4317, 16660), (4998, 14390), (5756, 12495), (7140, 10073), (7195, 9996), (8330, 8634)]