71197980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:484

約数の個数: 144

約数和(自身を含む): 236297376

約数和(自身を除く): 165099396

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 61, 70, 84, 98, 105, 122, 140, 147, 183, 196, 210, 244, 245, 294, 305, 366, 397, 420, 427, 490, 588, 610, 732, 735, 794, 854, 915, 980, 1191, 1220, 1281, 1470, 1588, 1708, 1830, 1985, 2135, 2382, 2562, 2779, 2940, 2989, 3660, 3970, 4270, 4764, 5124, 5558, 5955, 5978, 6405, 7940, 8337, 8540, 8967, 11116, 11910, 11956, 12810, 13895, 14945, 16674, 17934, 19453, 23820, 24217, 25620, 27790, 29890, 33348, 35868, 38906, 41685, 44835, 48434, 55580, 58359, 59780, 72651, 77812, 83370, 89670, 96868, 97265, 116718, 121085, 145302, 166740, 169519, 179340, 194530, 233436, 242170, 290604, 291795, 339038, 363255, 389060, 484340, 508557, 583590, 678076, 726510, 847595, 1017114, 1167180, 1186633, 1453020, 1695190, 2034228, 2373266, 2542785, 3390380, 3559899, 4746532, 5085570, 5933165, 7119798, 10171140, 11866330, 14239596, 17799495, 23732660, 35598990, 71197980]

約数ペア:

[(1, 71197980), (2, 35598990), (3, 23732660), (4, 17799495), (5, 14239596), (6, 11866330), (7, 10171140), (10, 7119798), (12, 5933165), (14, 5085570), (15, 4746532), (20, 3559899), (21, 3390380), (28, 2542785), (30, 2373266), (35, 2034228), (42, 1695190), (49, 1453020), (60, 1186633), (61, 1167180), (70, 1017114), (84, 847595), (98, 726510), (105, 678076), (122, 583590), (140, 508557), (147, 484340), (183, 389060), (196, 363255), (210, 339038), (244, 291795), (245, 290604), (294, 242170), (305, 233436), (366, 194530), (397, 179340), (420, 169519), (427, 166740), (490, 145302), (588, 121085), (610, 116718), (732, 97265), (735, 96868), (794, 89670), (854, 83370), (915, 77812), (980, 72651), (1191, 59780), (1220, 58359), (1281, 55580), (1470, 48434), (1588, 44835), (1708, 41685), (1830, 38906), (1985, 35868), (2135, 33348), (2382, 29890), (2562, 27790), (2779, 25620), (2940, 24217), (2989, 23820), (3660, 19453), (3970, 17934), (4270, 16674), (4764, 14945), (5124, 13895), (5558, 12810), (5955, 11956), (5978, 11910), (6405, 11116), (7940, 8967), (8337, 8540)]