28789740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:408

約数の個数: 144

約数和(自身を含む): 101494848

約数和(自身を除く): 72705108

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 73, 84, 90, 105, 126, 140, 146, 180, 210, 219, 252, 292, 313, 315, 365, 420, 438, 511, 626, 630, 657, 730, 876, 939, 1022, 1095, 1252, 1260, 1314, 1460, 1533, 1565, 1878, 2044, 2190, 2191, 2555, 2628, 2817, 3066, 3130, 3285, 3756, 4380, 4382, 4599, 4695, 5110, 5634, 6132, 6260, 6570, 6573, 7665, 8764, 9198, 9390, 10220, 10955, 11268, 13140, 13146, 14085, 15330, 18396, 18780, 19719, 21910, 22849, 22995, 26292, 28170, 30660, 32865, 39438, 43820, 45698, 45990, 56340, 65730, 68547, 78876, 91396, 91980, 98595, 114245, 131460, 137094, 159943, 197190, 205641, 228490, 274188, 319886, 342735, 394380, 411282, 456980, 479829, 639772, 685470, 799715, 822564, 959658, 1028205, 1370940, 1439487, 1599430, 1919316, 2056410, 2399145, 2878974, 3198860, 4112820, 4798290, 5757948, 7197435, 9596580, 14394870, 28789740]

約数ペア:

[(1, 28789740), (2, 14394870), (3, 9596580), (4, 7197435), (5, 5757948), (6, 4798290), (7, 4112820), (9, 3198860), (10, 2878974), (12, 2399145), (14, 2056410), (15, 1919316), (18, 1599430), (20, 1439487), (21, 1370940), (28, 1028205), (30, 959658), (35, 822564), (36, 799715), (42, 685470), (45, 639772), (60, 479829), (63, 456980), (70, 411282), (73, 394380), (84, 342735), (90, 319886), (105, 274188), (126, 228490), (140, 205641), (146, 197190), (180, 159943), (210, 137094), (219, 131460), (252, 114245), (292, 98595), (313, 91980), (315, 91396), (365, 78876), (420, 68547), (438, 65730), (511, 56340), (626, 45990), (630, 45698), (657, 43820), (730, 39438), (876, 32865), (939, 30660), (1022, 28170), (1095, 26292), (1252, 22995), (1260, 22849), (1314, 21910), (1460, 19719), (1533, 18780), (1565, 18396), (1878, 15330), (2044, 14085), (2190, 13146), (2191, 13140), (2555, 11268), (2628, 10955), (2817, 10220), (3066, 9390), (3130, 9198), (3285, 8764), (3756, 7665), (4380, 6573), (4382, 6570), (4599, 6260), (4695, 6132), (5110, 5634)]