20715600

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{283}}^1$

素因数の和:365

約数の個数: 120

約数和(自身を含む): 67685152

約数和(自身を除く): 46969552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 61, 75, 80, 100, 120, 122, 150, 183, 200, 240, 244, 283, 300, 305, 366, 400, 488, 566, 600, 610, 732, 849, 915, 976, 1132, 1200, 1220, 1415, 1464, 1525, 1698, 1830, 2264, 2440, 2830, 2928, 3050, 3396, 3660, 4245, 4528, 4575, 4880, 5660, 6100, 6792, 7075, 7320, 8490, 9150, 11320, 12200, 13584, 14150, 14640, 16980, 17263, 18300, 21225, 22640, 24400, 28300, 33960, 34526, 36600, 42450, 51789, 56600, 67920, 69052, 73200, 84900, 86315, 103578, 113200, 138104, 169800, 172630, 207156, 258945, 276208, 339600, 345260, 414312, 431575, 517890, 690520, 828624, 863150, 1035780, 1294725, 1381040, 1726300, 2071560, 2589450, 3452600, 4143120, 5178900, 6905200, 10357800, 20715600]

約数ペア:

[(1, 20715600), (2, 10357800), (3, 6905200), (4, 5178900), (5, 4143120), (6, 3452600), (8, 2589450), (10, 2071560), (12, 1726300), (15, 1381040), (16, 1294725), (20, 1035780), (24, 863150), (25, 828624), (30, 690520), (40, 517890), (48, 431575), (50, 414312), (60, 345260), (61, 339600), (75, 276208), (80, 258945), (100, 207156), (120, 172630), (122, 169800), (150, 138104), (183, 113200), (200, 103578), (240, 86315), (244, 84900), (283, 73200), (300, 69052), (305, 67920), (366, 56600), (400, 51789), (488, 42450), (566, 36600), (600, 34526), (610, 33960), (732, 28300), (849, 24400), (915, 22640), (976, 21225), (1132, 18300), (1200, 17263), (1220, 16980), (1415, 14640), (1464, 14150), (1525, 13584), (1698, 12200), (1830, 11320), (2264, 9150), (2440, 8490), (2830, 7320), (2928, 7075), (3050, 6792), (3396, 6100), (3660, 5660), (4245, 4880), (4528, 4575)]