20189790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:143

約数の個数: 128

約数和(自身を含む): 57784320

約数和(自身を除く): 37594530

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 43, 45, 47, 54, 74, 86, 90, 94, 111, 129, 135, 141, 185, 215, 222, 235, 258, 270, 282, 333, 370, 387, 423, 430, 470, 555, 645, 666, 705, 774, 846, 999, 1110, 1161, 1269, 1290, 1410, 1591, 1665, 1739, 1935, 1998, 2021, 2115, 2322, 2538, 3182, 3330, 3478, 3870, 4042, 4230, 4773, 4995, 5217, 5805, 6063, 6345, 7955, 8695, 9546, 9990, 10105, 10434, 11610, 12126, 12690, 14319, 15651, 15910, 17390, 18189, 20210, 23865, 26085, 28638, 30315, 31302, 36378, 42957, 46953, 47730, 52170, 54567, 60630, 71595, 74777, 78255, 85914, 90945, 93906, 109134, 143190, 149554, 156510, 181890, 214785, 224331, 234765, 272835, 373885, 429570, 448662, 469530, 545670, 672993, 747770, 1121655, 1345986, 2018979, 2243310, 3364965, 4037958, 6729930, 10094895, 20189790]

約数ペア:

[(1, 20189790), (2, 10094895), (3, 6729930), (5, 4037958), (6, 3364965), (9, 2243310), (10, 2018979), (15, 1345986), (18, 1121655), (27, 747770), (30, 672993), (37, 545670), (43, 469530), (45, 448662), (47, 429570), (54, 373885), (74, 272835), (86, 234765), (90, 224331), (94, 214785), (111, 181890), (129, 156510), (135, 149554), (141, 143190), (185, 109134), (215, 93906), (222, 90945), (235, 85914), (258, 78255), (270, 74777), (282, 71595), (333, 60630), (370, 54567), (387, 52170), (423, 47730), (430, 46953), (470, 42957), (555, 36378), (645, 31302), (666, 30315), (705, 28638), (774, 26085), (846, 23865), (999, 20210), (1110, 18189), (1161, 17390), (1269, 15910), (1290, 15651), (1410, 14319), (1591, 12690), (1665, 12126), (1739, 11610), (1935, 10434), (1998, 10105), (2021, 9990), (2115, 9546), (2322, 8695), (2538, 7955), (3182, 6345), (3330, 6063), (3478, 5805), (3870, 5217), (4042, 4995), (4230, 4773)]