28348380

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:350

約数の個数: 144

約数和(自身を含む): 94174080

約数和(自身を除く): 65825700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 243, 270, 285, 307, 324, 342, 380, 405, 486, 513, 540, 570, 614, 684, 810, 855, 921, 972, 1026, 1140, 1215, 1228, 1535, 1539, 1620, 1710, 1842, 2052, 2430, 2565, 2763, 3070, 3078, 3420, 3684, 4605, 4617, 4860, 5130, 5526, 5833, 6140, 6156, 7695, 8289, 9210, 9234, 10260, 11052, 11666, 13815, 15390, 16578, 17499, 18420, 18468, 23085, 23332, 24867, 27630, 29165, 30780, 33156, 34998, 41445, 46170, 49734, 52497, 55260, 58330, 69996, 74601, 82890, 87495, 92340, 99468, 104994, 116660, 124335, 149202, 157491, 165780, 174990, 209988, 248670, 262485, 298404, 314982, 349980, 373005, 472473, 497340, 524970, 629964, 746010, 787455, 944946, 1049940, 1417419, 1492020, 1574910, 1889892, 2362365, 2834838, 3149820, 4724730, 5669676, 7087095, 9449460, 14174190, 28348380]

約数ペア:

[(1, 28348380), (2, 14174190), (3, 9449460), (4, 7087095), (5, 5669676), (6, 4724730), (9, 3149820), (10, 2834838), (12, 2362365), (15, 1889892), (18, 1574910), (19, 1492020), (20, 1417419), (27, 1049940), (30, 944946), (36, 787455), (38, 746010), (45, 629964), (54, 524970), (57, 497340), (60, 472473), (76, 373005), (81, 349980), (90, 314982), (95, 298404), (108, 262485), (114, 248670), (135, 209988), (162, 174990), (171, 165780), (180, 157491), (190, 149202), (228, 124335), (243, 116660), (270, 104994), (285, 99468), (307, 92340), (324, 87495), (342, 82890), (380, 74601), (405, 69996), (486, 58330), (513, 55260), (540, 52497), (570, 49734), (614, 46170), (684, 41445), (810, 34998), (855, 33156), (921, 30780), (972, 29165), (1026, 27630), (1140, 24867), (1215, 23332), (1228, 23085), (1535, 18468), (1539, 18420), (1620, 17499), (1710, 16578), (1842, 15390), (2052, 13815), (2430, 11666), (2565, 11052), (2763, 10260), (3070, 9234), (3078, 9210), (3420, 8289), (3684, 7695), (4605, 6156), (4617, 6140), (4860, 5833), (5130, 5526)]