28902420

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:356

約数の個数: 144

約数和(自身を含む): 96008640

約数和(自身を除く): 67106220

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, 313, 324, 342, 380, 405, 486, 513, 540, 570, 626, 684, 810, 855, 939, 972, 1026, 1140, 1215, 1252, 1539, 1565, 1620, 1710, 1878, 2052, 2430, 2565, 2817, 3078, 3130, 3420, 3756, 4617, 4695, 4860, 5130, 5634, 5947, 6156, 6260, 7695, 8451, 9234, 9390, 10260, 11268, 11894, 14085, 15390, 16902, 17841, 18468, 18780, 23085, 23788, 25353, 28170, 29735, 30780, 33804, 35682, 42255, 46170, 50706, 53523, 56340, 59470, 71364, 76059, 84510, 89205, 92340, 101412, 107046, 118940, 126765, 152118, 160569, 169020, 178410, 214092, 253530, 267615, 304236, 321138, 356820, 380295, 481707, 507060, 535230, 642276, 760590, 802845, 963414, 1070460, 1445121, 1521180, 1605690, 1926828, 2408535, 2890242, 3211380, 4817070, 5780484, 7225605, 9634140, 14451210, 28902420]

約数ペア:

[(1, 28902420), (2, 14451210), (3, 9634140), (4, 7225605), (5, 5780484), (6, 4817070), (9, 3211380), (10, 2890242), (12, 2408535), (15, 1926828), (18, 1605690), (19, 1521180), (20, 1445121), (27, 1070460), (30, 963414), (36, 802845), (38, 760590), (45, 642276), (54, 535230), (57, 507060), (60, 481707), (76, 380295), (81, 356820), (90, 321138), (95, 304236), (108, 267615), (114, 253530), (135, 214092), (162, 178410), (171, 169020), (180, 160569), (190, 152118), (228, 126765), (243, 118940), (270, 107046), (285, 101412), (313, 92340), (324, 89205), (342, 84510), (380, 76059), (405, 71364), (486, 59470), (513, 56340), (540, 53523), (570, 50706), (626, 46170), (684, 42255), (810, 35682), (855, 33804), (939, 30780), (972, 29735), (1026, 28170), (1140, 25353), (1215, 23788), (1252, 23085), (1539, 18780), (1565, 18468), (1620, 17841), (1710, 16902), (1878, 15390), (2052, 14085), (2430, 11894), (2565, 11268), (2817, 10260), (3078, 9390), (3130, 9234), (3420, 8451), (3756, 7695), (4617, 6260), (4695, 6156), (4860, 5947), (5130, 5634)]