38720860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 89099136

約数和(自身を除く): 50378276

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 173, 190, 310, 346, 361, 380, 589, 620, 692, 722, 865, 1178, 1444, 1730, 1805, 2356, 2945, 3287, 3460, 3610, 5363, 5890, 6574, 7220, 10726, 11191, 11780, 13148, 16435, 21452, 22382, 26815, 32870, 44764, 53630, 55955, 62453, 65740, 101897, 107260, 111910, 124906, 203794, 223820, 249812, 312265, 407588, 509485, 624530, 1018970, 1249060, 1936043, 2037940, 3872086, 7744172, 9680215, 19360430, 38720860]

約数ペア:

[(1, 38720860), (2, 19360430), (4, 9680215), (5, 7744172), (10, 3872086), (19, 2037940), (20, 1936043), (31, 1249060), (38, 1018970), (62, 624530), (76, 509485), (95, 407588), (124, 312265), (155, 249812), (173, 223820), (190, 203794), (310, 124906), (346, 111910), (361, 107260), (380, 101897), (589, 65740), (620, 62453), (692, 55955), (722, 53630), (865, 44764), (1178, 32870), (1444, 26815), (1730, 22382), (1805, 21452), (2356, 16435), (2945, 13148), (3287, 11780), (3460, 11191), (3610, 10726), (5363, 7220), (5890, 6574)]