245368720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{98939}}^1$

素因数の和:98983

約数の個数: 40

約数和(自身を含む): 588890880

約数和(自身を除く): 343522160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 98939, 197878, 395756, 494695, 791512, 989390, 1583024, 1978780, 3067109, 3957560, 6134218, 7915120, 12268436, 15335545, 24536872, 30671090, 49073744, 61342180, 122684360, 245368720]

約数ペア:

[(1, 245368720), (2, 122684360), (4, 61342180), (5, 49073744), (8, 30671090), (10, 24536872), (16, 15335545), (20, 12268436), (31, 7915120), (40, 6134218), (62, 3957560), (80, 3067109), (124, 1978780), (155, 1583024), (248, 989390), (310, 791512), (496, 494695), (620, 395756), (1240, 197878), (2480, 98939)]