28907820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:149

約数の個数: 192

約数和(自身を含む): 98703360

約数和(自身を除く): 69795540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 47, 51, 54, 60, 67, 68, 85, 90, 94, 102, 108, 134, 135, 141, 153, 170, 180, 188, 201, 204, 235, 255, 268, 270, 282, 306, 335, 340, 402, 423, 459, 470, 510, 540, 564, 603, 612, 670, 705, 765, 799, 804, 846, 918, 940, 1005, 1020, 1139, 1206, 1269, 1340, 1410, 1530, 1598, 1692, 1809, 1836, 2010, 2115, 2278, 2295, 2397, 2412, 2538, 2820, 3015, 3060, 3149, 3196, 3417, 3618, 3995, 4020, 4230, 4556, 4590, 4794, 5076, 5695, 6030, 6298, 6345, 6834, 7191, 7236, 7990, 8460, 9045, 9180, 9447, 9588, 10251, 11390, 11985, 12060, 12596, 12690, 13668, 14382, 15745, 15980, 17085, 18090, 18894, 20502, 21573, 22780, 23970, 25380, 28341, 28764, 30753, 31490, 34170, 35955, 36180, 37788, 41004, 43146, 47235, 47940, 51255, 53533, 56682, 61506, 62980, 68340, 71910, 85023, 86292, 94470, 102510, 107066, 107865, 113364, 123012, 141705, 143820, 153765, 160599, 170046, 188940, 205020, 214132, 215730, 267665, 283410, 307530, 321198, 340092, 425115, 431460, 481797, 535330, 566820, 615060, 642396, 802995, 850230, 963594, 1070660, 1445391, 1605990, 1700460, 1927188, 2408985, 2890782, 3211980, 4817970, 5781564, 7226955, 9635940, 14453910, 28907820]

約数ペア:

[(1, 28907820), (2, 14453910), (3, 9635940), (4, 7226955), (5, 5781564), (6, 4817970), (9, 3211980), (10, 2890782), (12, 2408985), (15, 1927188), (17, 1700460), (18, 1605990), (20, 1445391), (27, 1070660), (30, 963594), (34, 850230), (36, 802995), (45, 642396), (47, 615060), (51, 566820), (54, 535330), (60, 481797), (67, 431460), (68, 425115), (85, 340092), (90, 321198), (94, 307530), (102, 283410), (108, 267665), (134, 215730), (135, 214132), (141, 205020), (153, 188940), (170, 170046), (180, 160599), (188, 153765), (201, 143820), (204, 141705), (235, 123012), (255, 113364), (268, 107865), (270, 107066), (282, 102510), (306, 94470), (335, 86292), (340, 85023), (402, 71910), (423, 68340), (459, 62980), (470, 61506), (510, 56682), (540, 53533), (564, 51255), (603, 47940), (612, 47235), (670, 43146), (705, 41004), (765, 37788), (799, 36180), (804, 35955), (846, 34170), (918, 31490), (940, 30753), (1005, 28764), (1020, 28341), (1139, 25380), (1206, 23970), (1269, 22780), (1340, 21573), (1410, 20502), (1530, 18894), (1598, 18090), (1692, 17085), (1809, 15980), (1836, 15745), (2010, 14382), (2115, 13668), (2278, 12690), (2295, 12596), (2397, 12060), (2412, 11985), (2538, 11390), (2820, 10251), (3015, 9588), (3060, 9447), (3149, 9180), (3196, 9045), (3417, 8460), (3618, 7990), (3995, 7236), (4020, 7191), (4230, 6834), (4556, 6345), (4590, 6298), (4794, 6030), (5076, 5695)]