20735460

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:127

約数の個数: 192

約数和(自身を含む): 70963200

約数和(自身を除く): 50227740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 43, 45, 47, 54, 57, 60, 76, 86, 90, 94, 95, 108, 114, 129, 135, 141, 171, 172, 180, 188, 190, 215, 228, 235, 258, 270, 282, 285, 342, 380, 387, 423, 430, 470, 513, 516, 540, 564, 570, 645, 684, 705, 774, 817, 846, 855, 860, 893, 940, 1026, 1140, 1161, 1269, 1290, 1410, 1548, 1634, 1692, 1710, 1786, 1935, 2021, 2052, 2115, 2322, 2451, 2538, 2565, 2580, 2679, 2820, 3268, 3420, 3572, 3870, 4042, 4085, 4230, 4465, 4644, 4902, 5076, 5130, 5358, 5805, 6063, 6345, 7353, 7740, 8037, 8084, 8170, 8460, 8930, 9804, 10105, 10260, 10716, 11610, 12126, 12255, 12690, 13395, 14706, 16074, 16340, 17860, 18189, 20210, 22059, 23220, 24111, 24252, 24510, 25380, 26790, 29412, 30315, 32148, 36378, 36765, 38399, 40185, 40420, 44118, 48222, 49020, 53580, 54567, 60630, 72756, 73530, 76798, 80370, 88236, 90945, 96444, 109134, 110295, 115197, 120555, 121260, 147060, 153596, 160740, 181890, 191995, 218268, 220590, 230394, 241110, 272835, 345591, 363780, 383990, 441180, 460788, 482220, 545670, 575985, 691182, 767980, 1036773, 1091340, 1151970, 1382364, 1727955, 2073546, 2303940, 3455910, 4147092, 5183865, 6911820, 10367730, 20735460]

約数ペア:

[(1, 20735460), (2, 10367730), (3, 6911820), (4, 5183865), (5, 4147092), (6, 3455910), (9, 2303940), (10, 2073546), (12, 1727955), (15, 1382364), (18, 1151970), (19, 1091340), (20, 1036773), (27, 767980), (30, 691182), (36, 575985), (38, 545670), (43, 482220), (45, 460788), (47, 441180), (54, 383990), (57, 363780), (60, 345591), (76, 272835), (86, 241110), (90, 230394), (94, 220590), (95, 218268), (108, 191995), (114, 181890), (129, 160740), (135, 153596), (141, 147060), (171, 121260), (172, 120555), (180, 115197), (188, 110295), (190, 109134), (215, 96444), (228, 90945), (235, 88236), (258, 80370), (270, 76798), (282, 73530), (285, 72756), (342, 60630), (380, 54567), (387, 53580), (423, 49020), (430, 48222), (470, 44118), (513, 40420), (516, 40185), (540, 38399), (564, 36765), (570, 36378), (645, 32148), (684, 30315), (705, 29412), (774, 26790), (817, 25380), (846, 24510), (855, 24252), (860, 24111), (893, 23220), (940, 22059), (1026, 20210), (1140, 18189), (1161, 17860), (1269, 16340), (1290, 16074), (1410, 14706), (1548, 13395), (1634, 12690), (1692, 12255), (1710, 12126), (1786, 11610), (1935, 10716), (2021, 10260), (2052, 10105), (2115, 9804), (2322, 8930), (2451, 8460), (2538, 8170), (2565, 8084), (2580, 8037), (2679, 7740), (2820, 7353), (3268, 6345), (3420, 6063), (3572, 5805), (3870, 5358), (4042, 5130), (4085, 5076), (4230, 4902), (4465, 4644)]