127221990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1439}}^1$

素因数の和:1877

約数の個数: 64

約数和(自身を含む): 350023680

約数和(自身を除く): 222801690

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 421, 842, 1263, 1439, 2105, 2526, 2878, 2947, 4210, 4317, 5894, 6315, 7195, 8634, 8841, 10073, 12630, 14390, 14735, 17682, 20146, 21585, 29470, 30219, 43170, 44205, 50365, 60438, 88410, 100730, 151095, 302190, 605819, 1211638, 1817457, 3029095, 3634914, 4240733, 6058190, 8481466, 9087285, 12722199, 18174570, 21203665, 25444398, 42407330, 63610995, 127221990]

約数ペア:

[(1, 127221990), (2, 63610995), (3, 42407330), (5, 25444398), (6, 21203665), (7, 18174570), (10, 12722199), (14, 9087285), (15, 8481466), (21, 6058190), (30, 4240733), (35, 3634914), (42, 3029095), (70, 1817457), (105, 1211638), (210, 605819), (421, 302190), (842, 151095), (1263, 100730), (1439, 88410), (2105, 60438), (2526, 50365), (2878, 44205), (2947, 43170), (4210, 30219), (4317, 29470), (5894, 21585), (6315, 20146), (7195, 17682), (8634, 14735), (8841, 14390), (10073, 12630)]