19505360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:652

約数の個数: 80

約数和(自身を含む): 52770432

約数和(自身を除く): 33265072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 571, 610, 854, 976, 1142, 1220, 1708, 2135, 2284, 2440, 2855, 3416, 3997, 4270, 4568, 4880, 5710, 6832, 7994, 8540, 9136, 11420, 15988, 17080, 19985, 22840, 31976, 34160, 34831, 39970, 45680, 63952, 69662, 79940, 139324, 159880, 174155, 243817, 278648, 319760, 348310, 487634, 557296, 696620, 975268, 1219085, 1393240, 1950536, 2438170, 2786480, 3901072, 4876340, 9752680, 19505360]

約数ペア:

[(1, 19505360), (2, 9752680), (4, 4876340), (5, 3901072), (7, 2786480), (8, 2438170), (10, 1950536), (14, 1393240), (16, 1219085), (20, 975268), (28, 696620), (35, 557296), (40, 487634), (56, 348310), (61, 319760), (70, 278648), (80, 243817), (112, 174155), (122, 159880), (140, 139324), (244, 79940), (280, 69662), (305, 63952), (427, 45680), (488, 39970), (560, 34831), (571, 34160), (610, 31976), (854, 22840), (976, 19985), (1142, 17080), (1220, 15988), (1708, 11420), (2135, 9136), (2284, 8540), (2440, 7994), (2855, 6832), (3416, 5710), (3997, 4880), (4270, 4568)]