520121970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19997}}^1$

素因数の和:20044

約数の個数: 72

約数和(自身を含む): 1436616324

約数和(自身を除く): 916494354

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 289, 306, 510, 578, 765, 867, 1445, 1530, 1734, 2601, 2890, 4335, 5202, 8670, 13005, 19997, 26010, 39994, 59991, 99985, 119982, 179973, 199970, 299955, 339949, 359946, 599910, 679898, 899865, 1019847, 1699745, 1799730, 2039694, 3059541, 3399490, 5099235, 5779133, 6119082, 10198470, 11558266, 15297705, 17337399, 28895665, 30595410, 34674798, 52012197, 57791330, 86686995, 104024394, 173373990, 260060985, 520121970]

約数ペア:

[(1, 520121970), (2, 260060985), (3, 173373990), (5, 104024394), (6, 86686995), (9, 57791330), (10, 52012197), (15, 34674798), (17, 30595410), (18, 28895665), (30, 17337399), (34, 15297705), (45, 11558266), (51, 10198470), (85, 6119082), (90, 5779133), (102, 5099235), (153, 3399490), (170, 3059541), (255, 2039694), (289, 1799730), (306, 1699745), (510, 1019847), (578, 899865), (765, 679898), (867, 599910), (1445, 359946), (1530, 339949), (1734, 299955), (2601, 199970), (2890, 179973), (4335, 119982), (5202, 99985), (8670, 59991), (13005, 39994), (19997, 26010)]