19976970400

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{805523}}^1$

素因数の和:805574

約数の個数: 72

約数和(自身を含む): 50342027904

約数和(自身を除く): 30365057504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 155, 160, 200, 248, 310, 400, 496, 620, 775, 800, 992, 1240, 1550, 2480, 3100, 4960, 6200, 12400, 24800, 805523, 1611046, 3222092, 4027615, 6444184, 8055230, 12888368, 16110460, 20138075, 24971213, 25776736, 32220920, 40276150, 49942426, 64441840, 80552300, 99884852, 124856065, 128883680, 161104600, 199769704, 249712130, 322209200, 399539408, 499424260, 624280325, 644418400, 799078816, 998848520, 1248560650, 1997697040, 2497121300, 3995394080, 4994242600, 9988485200, 19976970400]

約数ペア:

[(1, 19976970400), (2, 9988485200), (4, 4994242600), (5, 3995394080), (8, 2497121300), (10, 1997697040), (16, 1248560650), (20, 998848520), (25, 799078816), (31, 644418400), (32, 624280325), (40, 499424260), (50, 399539408), (62, 322209200), (80, 249712130), (100, 199769704), (124, 161104600), (155, 128883680), (160, 124856065), (200, 99884852), (248, 80552300), (310, 64441840), (400, 49942426), (496, 40276150), (620, 32220920), (775, 25776736), (800, 24971213), (992, 20138075), (1240, 16110460), (1550, 12888368), (2480, 8055230), (3100, 6444184), (4960, 4027615), (6200, 3222092), (12400, 1611046), (24800, 805523)]