15951780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:446

約数の個数: 144

約数和(自身を含む): 55311984

約数和(自身を除く): 39360204

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 401, 442, 468, 510, 585, 612, 663, 765, 780, 802, 884, 1020, 1105, 1170, 1203, 1326, 1530, 1604, 1989, 2005, 2210, 2340, 2406, 2652, 3060, 3315, 3609, 3978, 4010, 4420, 4812, 5213, 6015, 6630, 6817, 7218, 7956, 8020, 9945, 10426, 12030, 13260, 13634, 14436, 15639, 18045, 19890, 20451, 20852, 24060, 26065, 27268, 31278, 34085, 36090, 39780, 40902, 46917, 52130, 61353, 62556, 68170, 72180, 78195, 81804, 88621, 93834, 102255, 104260, 122706, 136340, 156390, 177242, 187668, 204510, 234585, 245412, 265863, 306765, 312780, 354484, 409020, 443105, 469170, 531726, 613530, 797589, 886210, 938340, 1063452, 1227060, 1329315, 1595178, 1772420, 2658630, 3190356, 3987945, 5317260, 7975890, 15951780]

約数ペア:

[(1, 15951780), (2, 7975890), (3, 5317260), (4, 3987945), (5, 3190356), (6, 2658630), (9, 1772420), (10, 1595178), (12, 1329315), (13, 1227060), (15, 1063452), (17, 938340), (18, 886210), (20, 797589), (26, 613530), (30, 531726), (34, 469170), (36, 443105), (39, 409020), (45, 354484), (51, 312780), (52, 306765), (60, 265863), (65, 245412), (68, 234585), (78, 204510), (85, 187668), (90, 177242), (102, 156390), (117, 136340), (130, 122706), (153, 104260), (156, 102255), (170, 93834), (180, 88621), (195, 81804), (204, 78195), (221, 72180), (234, 68170), (255, 62556), (260, 61353), (306, 52130), (340, 46917), (390, 40902), (401, 39780), (442, 36090), (468, 34085), (510, 31278), (585, 27268), (612, 26065), (663, 24060), (765, 20852), (780, 20451), (802, 19890), (884, 18045), (1020, 15639), (1105, 14436), (1170, 13634), (1203, 13260), (1326, 12030), (1530, 10426), (1604, 9945), (1989, 8020), (2005, 7956), (2210, 7218), (2340, 6817), (2406, 6630), (2652, 6015), (3060, 5213), (3315, 4812), (3609, 4420), (3978, 4010)]