199978520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23039}}^1$

素因数の和:23088

約数の個数: 64

約数和(自身を含む): 530841600

約数和(自身を除く): 330863080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 23039, 46078, 92156, 115195, 161273, 184312, 230390, 322546, 460780, 645092, 714209, 806365, 921560, 1290184, 1428418, 1612730, 2856836, 3225460, 3571045, 4999463, 5713672, 6450920, 7142090, 9998926, 14284180, 19997852, 24997315, 28568360, 39995704, 49994630, 99989260, 199978520]

約数ペア:

[(1, 199978520), (2, 99989260), (4, 49994630), (5, 39995704), (7, 28568360), (8, 24997315), (10, 19997852), (14, 14284180), (20, 9998926), (28, 7142090), (31, 6450920), (35, 5713672), (40, 4999463), (56, 3571045), (62, 3225460), (70, 2856836), (124, 1612730), (140, 1428418), (155, 1290184), (217, 921560), (248, 806365), (280, 714209), (310, 645092), (434, 460780), (620, 322546), (868, 230390), (1085, 184312), (1240, 161273), (1736, 115195), (2170, 92156), (4340, 46078), (8680, 23039)]