15219760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:99

約数の個数: 120

約数和(自身を含む): 40818816

約数和(自身を除く): 25599056

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 34, 38, 40, 62, 68, 76, 80, 85, 95, 124, 136, 152, 155, 170, 190, 248, 272, 304, 310, 323, 340, 361, 380, 496, 527, 589, 620, 646, 680, 722, 760, 1054, 1178, 1240, 1292, 1360, 1444, 1520, 1615, 1805, 2108, 2356, 2480, 2584, 2635, 2888, 2945, 3230, 3610, 4216, 4712, 5168, 5270, 5776, 5890, 6137, 6460, 7220, 8432, 9424, 10013, 10540, 11191, 11780, 12274, 12920, 14440, 20026, 21080, 22382, 23560, 24548, 25840, 28880, 30685, 40052, 42160, 44764, 47120, 49096, 50065, 55955, 61370, 80104, 89528, 98192, 100130, 111910, 122740, 160208, 179056, 190247, 200260, 223820, 245480, 380494, 400520, 447640, 490960, 760988, 801040, 895280, 951235, 1521976, 1902470, 3043952, 3804940, 7609880, 15219760]

約数ペア:

[(1, 15219760), (2, 7609880), (4, 3804940), (5, 3043952), (8, 1902470), (10, 1521976), (16, 951235), (17, 895280), (19, 801040), (20, 760988), (31, 490960), (34, 447640), (38, 400520), (40, 380494), (62, 245480), (68, 223820), (76, 200260), (80, 190247), (85, 179056), (95, 160208), (124, 122740), (136, 111910), (152, 100130), (155, 98192), (170, 89528), (190, 80104), (248, 61370), (272, 55955), (304, 50065), (310, 49096), (323, 47120), (340, 44764), (361, 42160), (380, 40052), (496, 30685), (527, 28880), (589, 25840), (620, 24548), (646, 23560), (680, 22382), (722, 21080), (760, 20026), (1054, 14440), (1178, 12920), (1240, 12274), (1292, 11780), (1360, 11191), (1444, 10540), (1520, 10013), (1615, 9424), (1805, 8432), (2108, 7220), (2356, 6460), (2480, 6137), (2584, 5890), (2635, 5776), (2888, 5270), (2945, 5168), (3230, 4712), (3610, 4216)]