28004100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^3\times {\mathrm{19}}^1$

素因数の和:87

約数の個数: 144

約数和(自身を含む): 90619200

約数和(自身を除く): 62615100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 25, 30, 34, 38, 50, 51, 57, 60, 68, 75, 76, 85, 95, 100, 102, 114, 150, 170, 190, 204, 228, 255, 285, 289, 300, 323, 340, 380, 425, 475, 510, 570, 578, 646, 850, 867, 950, 969, 1020, 1140, 1156, 1275, 1292, 1425, 1445, 1615, 1700, 1734, 1900, 1938, 2550, 2850, 2890, 3230, 3468, 3876, 4335, 4845, 4913, 5100, 5491, 5700, 5780, 6460, 7225, 8075, 8670, 9690, 9826, 10982, 14450, 14739, 16150, 16473, 17340, 19380, 19652, 21675, 21964, 24225, 24565, 27455, 28900, 29478, 32300, 32946, 43350, 48450, 49130, 54910, 58956, 65892, 73695, 82365, 86700, 93347, 96900, 98260, 109820, 122825, 137275, 147390, 164730, 186694, 245650, 274550, 280041, 294780, 329460, 368475, 373388, 411825, 466735, 491300, 549100, 560082, 736950, 823650, 933470, 1120164, 1400205, 1473900, 1647300, 1866940, 2333675, 2800410, 4667350, 5600820, 7001025, 9334700, 14002050, 28004100]

約数ペア:

[(1, 28004100), (2, 14002050), (3, 9334700), (4, 7001025), (5, 5600820), (6, 4667350), (10, 2800410), (12, 2333675), (15, 1866940), (17, 1647300), (19, 1473900), (20, 1400205), (25, 1120164), (30, 933470), (34, 823650), (38, 736950), (50, 560082), (51, 549100), (57, 491300), (60, 466735), (68, 411825), (75, 373388), (76, 368475), (85, 329460), (95, 294780), (100, 280041), (102, 274550), (114, 245650), (150, 186694), (170, 164730), (190, 147390), (204, 137275), (228, 122825), (255, 109820), (285, 98260), (289, 96900), (300, 93347), (323, 86700), (340, 82365), (380, 73695), (425, 65892), (475, 58956), (510, 54910), (570, 49130), (578, 48450), (646, 43350), (850, 32946), (867, 32300), (950, 29478), (969, 28900), (1020, 27455), (1140, 24565), (1156, 24225), (1275, 21964), (1292, 21675), (1425, 19652), (1445, 19380), (1615, 17340), (1700, 16473), (1734, 16150), (1900, 14739), (1938, 14450), (2550, 10982), (2850, 9826), (2890, 9690), (3230, 8670), (3468, 8075), (3876, 7225), (4335, 6460), (4845, 5780), (4913, 5700), (5100, 5491)]