19940970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{353}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 55054080

約数和(自身を除く): 35113110

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 269, 353, 538, 706, 807, 1059, 1345, 1614, 1765, 1883, 2118, 2471, 2690, 3530, 3766, 4035, 4942, 5295, 5649, 7413, 8070, 9415, 10590, 11298, 12355, 14826, 18830, 24710, 28245, 37065, 56490, 74130, 94957, 189914, 284871, 474785, 569742, 664699, 949570, 1329398, 1424355, 1994097, 2848710, 3323495, 3988194, 6646990, 9970485, 19940970]

約数ペア:

[(1, 19940970), (2, 9970485), (3, 6646990), (5, 3988194), (6, 3323495), (7, 2848710), (10, 1994097), (14, 1424355), (15, 1329398), (21, 949570), (30, 664699), (35, 569742), (42, 474785), (70, 284871), (105, 189914), (210, 94957), (269, 74130), (353, 56490), (538, 37065), (706, 28245), (807, 24710), (1059, 18830), (1345, 14826), (1614, 12355), (1765, 11298), (1883, 10590), (2118, 9415), (2471, 8070), (2690, 7413), (3530, 5649), (3766, 5295), (4035, 4942)]