2013998080

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12689}}^1$

素因数の和:12745

約数の個数: 88

約数和(自身を含む): 4987474560

約数和(自身を除く): 2973476480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 5120, 7936, 9920, 12689, 15872, 19840, 25378, 31744, 39680, 50756, 63445, 79360, 101512, 126890, 158720, 203024, 253780, 393359, 406048, 507560, 786718, 812096, 1015120, 1573436, 1624192, 1966795, 2030240, 3146872, 3248384, 3933590, 4060480, 6293744, 6496768, 7867180, 8120960, 12587488, 12993536, 15734360, 16241920, 25174976, 31468720, 32483840, 50349952, 62937440, 64967680, 100699904, 125874880, 201399808, 251749760, 402799616, 503499520, 1006999040, 2013998080]

約数ペア:

[(1, 2013998080), (2, 1006999040), (4, 503499520), (5, 402799616), (8, 251749760), (10, 201399808), (16, 125874880), (20, 100699904), (31, 64967680), (32, 62937440), (40, 50349952), (62, 32483840), (64, 31468720), (80, 25174976), (124, 16241920), (128, 15734360), (155, 12993536), (160, 12587488), (248, 8120960), (256, 7867180), (310, 6496768), (320, 6293744), (496, 4060480), (512, 3933590), (620, 3248384), (640, 3146872), (992, 2030240), (1024, 1966795), (1240, 1624192), (1280, 1573436), (1984, 1015120), (2480, 812096), (2560, 786718), (3968, 507560), (4960, 406048), (5120, 393359), (7936, 253780), (9920, 203024), (12689, 158720), (15872, 126890), (19840, 101512), (25378, 79360), (31744, 63445), (39680, 50756)]