161385420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3229}}^1$

素因数の和:3272

約数の個数: 144

約数和(自身を含む): 556748640

約数和(自身を除く): 395363220

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, 1470, 1666, 1785, 2380, 2499, 2940, 3229, 3332, 3570, 4165, 4998, 6458, 7140, 8330, 9687, 9996, 12495, 12916, 16145, 16660, 19374, 22603, 24990, 32290, 38748, 45206, 48435, 49980, 54893, 64580, 67809, 90412, 96870, 109786, 113015, 135618, 158221, 164679, 193740, 219572, 226030, 271236, 274465, 316442, 329358, 339045, 384251, 452060, 474663, 548930, 632884, 658716, 678090, 768502, 791105, 823395, 949326, 1097860, 1152753, 1356180, 1537004, 1582210, 1646790, 1898652, 1921255, 2305506, 2373315, 2689757, 3164420, 3293580, 3842510, 4611012, 4746630, 5379514, 5763765, 7685020, 8069271, 9493260, 10759028, 11527530, 13448785, 16138542, 23055060, 26897570, 32277084, 40346355, 53795140, 80692710, 161385420]

約数ペア:

[(1, 161385420), (2, 80692710), (3, 53795140), (4, 40346355), (5, 32277084), (6, 26897570), (7, 23055060), (10, 16138542), (12, 13448785), (14, 11527530), (15, 10759028), (17, 9493260), (20, 8069271), (21, 7685020), (28, 5763765), (30, 5379514), (34, 4746630), (35, 4611012), (42, 3842510), (49, 3293580), (51, 3164420), (60, 2689757), (68, 2373315), (70, 2305506), (84, 1921255), (85, 1898652), (98, 1646790), (102, 1582210), (105, 1537004), (119, 1356180), (140, 1152753), (147, 1097860), (170, 949326), (196, 823395), (204, 791105), (210, 768502), (238, 678090), (245, 658716), (255, 632884), (294, 548930), (340, 474663), (357, 452060), (420, 384251), (476, 339045), (490, 329358), (510, 316442), (588, 274465), (595, 271236), (714, 226030), (735, 219572), (833, 193740), (980, 164679), (1020, 158221), (1190, 135618), (1428, 113015), (1470, 109786), (1666, 96870), (1785, 90412), (2380, 67809), (2499, 64580), (2940, 54893), (3229, 49980), (3332, 48435), (3570, 45206), (4165, 38748), (4998, 32290), (6458, 24990), (7140, 22603), (8330, 19374), (9687, 16660), (9996, 16145), (12495, 12916)]