19672500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 120

約数和(自身を含む): 59655904

約数和(自身を除く): 39983404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 61, 75, 86, 100, 122, 125, 129, 150, 172, 183, 215, 244, 250, 258, 300, 305, 366, 375, 430, 500, 516, 610, 625, 645, 732, 750, 860, 915, 1075, 1220, 1250, 1290, 1500, 1525, 1830, 1875, 2150, 2500, 2580, 2623, 3050, 3225, 3660, 3750, 4300, 4575, 5246, 5375, 6100, 6450, 7500, 7625, 7869, 9150, 10492, 10750, 12900, 13115, 15250, 15738, 16125, 18300, 21500, 22875, 26230, 26875, 30500, 31476, 32250, 38125, 39345, 45750, 52460, 53750, 64500, 65575, 76250, 78690, 80625, 91500, 107500, 114375, 131150, 152500, 157380, 161250, 196725, 228750, 262300, 322500, 327875, 393450, 457500, 655750, 786900, 983625, 1311500, 1639375, 1967250, 3278750, 3934500, 4918125, 6557500, 9836250, 19672500]

約数ペア:

[(1, 19672500), (2, 9836250), (3, 6557500), (4, 4918125), (5, 3934500), (6, 3278750), (10, 1967250), (12, 1639375), (15, 1311500), (20, 983625), (25, 786900), (30, 655750), (43, 457500), (50, 393450), (60, 327875), (61, 322500), (75, 262300), (86, 228750), (100, 196725), (122, 161250), (125, 157380), (129, 152500), (150, 131150), (172, 114375), (183, 107500), (215, 91500), (244, 80625), (250, 78690), (258, 76250), (300, 65575), (305, 64500), (366, 53750), (375, 52460), (430, 45750), (500, 39345), (516, 38125), (610, 32250), (625, 31476), (645, 30500), (732, 26875), (750, 26230), (860, 22875), (915, 21500), (1075, 18300), (1220, 16125), (1250, 15738), (1290, 15250), (1500, 13115), (1525, 12900), (1830, 10750), (1875, 10492), (2150, 9150), (2500, 7869), (2580, 7625), (2623, 7500), (3050, 6450), (3225, 6100), (3660, 5375), (3750, 5246), (4300, 4575)]